Nodal variables abaqus. If nodal field output is requested for a node that has a .

Nodal variables abaqus. This subroutine allows you to define field variables at a material point as functions of time, of any of the available material point quantities listed in Abaqus/Standard output variable identifiers, and of material directions. However, digital filtering is allowed for most element and nodal output variables, and you can apply bounding values on unfiltered data for nearly all element and nodal output variables. In this case the user subroutine will be called whenever a current value of a field variable is needed for a node that is listed in the specified field variable definition. FSLIPR . Alternatively, the user element variables can be defined so as to order the degrees of freedom on the element in any arbitrary fashion. Data lines to request nodal output in the results or selected results file First line Give the identifying keys for the variables to be written to the results or selected results file. The possible report positions are: integration point, centroid, element nodal, and unique nodal. By default, only one field variable at a time can be updated in user subroutine UFIELD. Internal variables in ABAQUS/Standard In addition to the degrees of freedom listed above, ABAQUS/Standard uses internal variables (such as Lagrange multipliers to impose constraints) for some elements. Nodal temperatures calculated during an ABAQUS/Standard heat transfer or coupled thermal-electrical analysis can be used to define temperatures or field variables in a subsequent analysis. Your browser is not supported by this document. The display of node-based field output variables (such as displacement), quilt contour plots, and plots of discontinuities does not involve value averaging The data that can appear in a report reside in the containers at the far right of each branch. For the display of nodal field output variables, Abaqus/CAE reads the required values from the output database for each node included in the plot. You can download Netscape Communicator from here. No more than four terms can be defined on a line. All types of output requests in an output block are defined from the card image. In Abaqus/Standard if nodal values of temperature (NT), normalized concentrations (NNC), or electric potential (EPOT) are written to the output database file, they can be used to define field variables in a subsequent Abaqus/Standard analysis. Choose whether Abaqus will compute invariants (scalars) and extract components before or after averaging results over the specified regions. In this section: Abaqus/Standard output variable identifiers Abaqus/Explicit output variable identifiers Module abaqus contains two most important variable mdb and session which control the model. Initial conditions Appropriate initial conditions for Abaqus/Standard procedures are discussed in Analysis Procedures. If nodal field output is requested for a node that has a Abaqus/CAE can calculate and report values for a given variable at a variety of positions. Nodal variables (selected by the *NODE FILE, *NODE OUTPUT and The nodal variables that can be written to the output database are defined in the Nodal variables section of Abaqus/Standard output variable identifiers and Abaqus/Explicit output variable identifiers. Nodal contact variables include contact pressure and force, frictional shear stress and force, relative tangential motion (slip) of the surfaces during contact, clearance between surfaces, heat or fluid flux per unit area, fluid pressure, and In Abaqus/Explicit you can define initial acoustic static pressure values at the acoustic nodes. Deformed plots show the shape of your model based on the values of a nodal variable (such as displacement) at a specified step and frame of your analysis. All physical displacement components, including rotations at nodes with rotational degrees of freedom (for output to the output database, only field-type output includes the rotations). COORn Field: no History: yes . dat: no All physical displacement components, including Give the identifying keys for the variables to be printed in a table for this node set. For integration point variables Abaqus obtains the solution variables at the nodes of the old mesh by extrapolating values from the integration points to the nodes of each element and then averaging these values over all similar elements abutting each node. Abaqus issues a warning message during input file preprocessing if an initial field variable is applied to any node that is associated with at least one shell or beam section that specifies field variables using gradients and at least one section that directly specifies the values of the field variables. The nodal variables that can be written to the output database are defined in the “Nodal variables” section of ABAQUS/Standard output variable identifiers, Section 4. fil: no Contac You can request nodal variable output to the data, results, or output database file. This field output request consists of preselected element variables for the whole model, as well as the variable PEQC. Length of contact slip path at slave nodes during contact (FSLIPEQ) and in some cases (see About contact pairs in Abaqus/Explicit) components of net contact slip in local tangent directions (FSLIP1 and FSLIP2). is the external force vector. fil: no Coordinate n (n = 1,2,3 n = 1, 2, 3). 1. Enter the extreme value. frd file (ASCII), with the commands *NODE OUTPUT and *ELEMENT OUTPUT in the . Nodal contact variables include contact pressure and force, frictional shear stress and force, relative tangential motion (slip) of the surfaces during contact, clearance between surfaces, heat or fluid flux per unit area, and fluid pressure. Integration point data follow the order defined in the User's Manuals. Value of A2 A 2. Repeat this data line as often as necessary to define the nodal variables to be written to the output database. Output requests organized into the output blocks are written out within the corresponding step definition in the Abaqus input deck. For a list of scalar nodal output variables that can be used to initialize a predefined field, see Predefined Fields. Symbol plotting behavior changes slightly when you cut through a model using view cuts. Section point data for beams and shells follow the convention given in the User's Manuals. You can specify the initial acoustic static pressure at two reference locations in the model, and Abaqus/Explicit interpolates these data linearly to the acoustic nodes in the specified node set. Contact surface variables such as CNORMF, CSHEARF, CPRESS, COPEN, CSLIP, CSHEAR1, and CSHEAR2 can be reported only at the element nodal position. The number of additional constraint variables depends on the connection type. These are the current coordinates if the large-displacement formulation is being used. If a local coordinate system is defined at a node (see Transformed coordinate systems), you can specify whether output to the data or results file of vector-valued quantities at these nodes is in the local or global system For nodal variables 1, 2, and 3 are global directions (1= X, 2= Y, and 3= Z; or for axisymmetric elements, 1= r and 2= z). 3 An ABAQUS Scripting Interface version of FPERT A FORTRAN program that reads the ABAQUS results file and creates a deformed mesh from the original coordinate data and eigenvectors is described in Creation of a perturbed mesh from original coordinate data and eigenvectors: FPERT, Section 12. Overview The tables in this section list all of the output variables that are available in ABAQUS/Standard. odb History: no 8. 1, and ABAQUS/Explicit output variable identifiers, Section 4. In addition, plastic strains will be written out for element set SMALL, and the nodal variables U and RF will be written to the output database for node set NSMALL. Set VARIABLE = PRESELECT to indicate that the default nodal output variables for the current procedure type should be written to the output database. You can display field output variables that you have created in the same ways as output database field output variables: in the form of a deformed, contour, or symbol plot; by probing any model or X–Y plot; as X–Y data obtained along a path through your model; or in a tabular Available output variable keys Only nodal output variable keys that are valid for results file output in the current step are available for use with GETVRN. The variable whose values are shown is called the deformed field output variable. You specify a list of degrees of freedom for the first node on the element. fil) file in an ABAQUS/Standard analysis or to the selected results (. By default, these values are displayed in the global coordinate system; you can choose to apply the nodal transformations to the results or to apply a user-specified coordinate system transformation. The method that Abaqus/CAE uses to combine overlapping facet data in the consolidated data set depends on the output variable: For the variables CPRESS, CSHEAR, and CSLIP, Abaqus/CAE uses the largest value, positive or negative, in the model for the selected variable. Degree of freedom, j, at above node for variable uQ j u j Q. When generating the field output report for element-based field output at any output position, Abaqus/CAE writes the field values from the specified position if the same position is available in the output database. odb') # Create a variable that refers to the # last frame of the first step. There are two ways to define output variable requests quickly and easily. ) to the output database. ) and point load or boundary condition specification (see Transformed coordinate systems), and for material or kinematic joint specification (see Orientations). *NODE FILE Define results file requests for nodal data. You create new field output variables from fields by operating on analysis results found in the output database. py # A script to read the Abaqus/CAE Visualization module tutorial # output database and read displacement data from the node at # the center of the hemispherical punch. The keys are defined in the “Nodal variables” section of Abaqus/Standard output variable identifiers and Abaqus/Explicit output variable identifiers. ABAQUS/CAE can calculate and report values for a given variable at a variety of positions. Node number or node set label, Q, of second nodal variable, uQ j u j Q. See Initial conditions in Abaqus/Standard and Abaqus/Explicit for details. All coordinate Nodal contact variables can be contoured on contact surfaces in the Visualization module of Abaqus/CAE. If no *NODE PRINT card is used within a step the selections of the previous step apply, if any. You can read the nodal temperatures, normalized concentrations, or electric potentials from previous analyses to initialize predefined fields. Additional output variables can be requested on the data lines. In ABAQUS/Standard you can request vector-valued nodal variables in the local directions defined by nodal transformations, which is the default for nodal output requests to the data file. Running the Abaqus job generates outputs specified by the user, with *OUTPUT commands in the Abaqus job input file. This can be done for a specific node or area, or you can even obtain the total reaction forces in Abaqus. 2 of the ABAQUS Analysis User's Manual. Input File Usage: *HEAT TRANSFER, DELTMX = ABAQUS/CAE Usage: The output variables listed below are available in Abaqus/Explicit. Understanding deformed shape plotting A deformed plot shows the shape of your model according to the values of a nodal variable such as displacement. The collective output variable keys are distinguished from their individual components by the fact that they have the word "yes" after the category . Results file and field-type output Whenever one variable is defined as a function of another, the data must be given in the proper order so that Abaqus can interpolate for intermediate values correctly. Current default use generates an odb file, using commands of the type *NODE OUTPUT. Repeat the second data line as often as necessary to define all of the terms of the equation. Abaqus and this documentation may be used or reproduced only in accordance with the terms of the software license agreement signed by the customer, or, absent such an agreement, the then current software license agreement to which the documentation relates. The keys are defined in the “Nodal variables” section of Abaqus/Standard Output Variable Identifiers and Abaqus/Explicit Output Variable Identifiers. If I want to check the results the two variables, NT and TEMP for the same node, are quite different. Since the redefinition of field variables in USDFLD is local to the current increment (field variables are restored to the values interpolated from the nodal values at the start of each increment), any history dependence required to update material properties by using this subroutine must be introduced with user-defined state variables. Symbol plot of principal stress. odb) file and Abaqus/Viewer does the actual computation of the responses. Even if a local coordinate system has been defined at a node (Transformed coordinate systems), the data in the results file and the selected results file are still output in the global directions. To control whether Abaqus/CAE averages nodal results based on all contributing elements or based only on the elements in the current display group, toggle Average only displayed elements. Next, the location of each point in the new mesh is obtained with respect to the old mesh. The basic coordinate system in Abaqus is a right-handed, rectangular Cartesian system. If the temperature values were specified at equally spaced points through the thickness, output at the temperature points can be obtained in an Abaqus/Standard stress analysis, as in a heat transfer analysis, by using the nodal variable NTxx. e. You can use the Query toolset to obtain nodal data and results. fil output binary file. Variable output position: A SymbolicConstant specifying the output position. For the display of nodal field output variables, ABAQUS/CAE reads the required values from the output database for each node included in the plot. These tests verify that an analysis model with nodal temperature and field variables can be imported from an Abaqus/Standard analysis into an Abaqus/Explicit analysis. You will have to extend the script to include the additional steps 1) Extract the integration point variable to the element nodes for the desired field output variable. If nodal field output is requested for a node that has a Value of A1 A 1. The tables in the following sections list all of the output variables that are available in Abaqus/Standard. Such values can be specified as functions of time. OUTPUT VARIABLE Set this variable equal to the scalar nodal output variable that will be read from an output database and used to initialize a specified predefined field. You can output nodal variables (displacements, reaction forces, etc. The *CONTACT OUTPUT, *ELEMENT OUTPUT, *ENERGY OUTPUT, *INCREMENTATION OUTPUT You can modify the submodel boundary condition to add new variables to the list of driven variables, you can remove variables from the driven variable set, and you can reintroduce them later (see Boundary conditions in Abaqus/Standard and Abaqus/Explicit). Imports are thus handled in SDT using the . line- or banded-type contours, probing at nodal locations, forming a display group or color coding based on result values, extracting X–Y data from fields, extracting X–Y data along a path, or generating reports for field data. sel) file in an ABAQUS/Explicit analysis. User subroutine VUFIELD can also be used to update multiple field variables simultaneously for given nodes or a given node set. . The nodal variables that can be written to the output database are defined in Nodal Variables (Abaqus/Standard) and Nodal Variables (Abaqus/Explicit). fil: yes . U Field: yes History: yes . , when we defines a part using the following code: The nodal variables that can be written to the output database are defined in the “Nodal variables” section of ABAQUS/Standard output variable identifiers, Section 4. If a local coordinate system is defined at a node (see Transformed Coordinate Systems), you can specify whether output to the data or results file of vector-valued quantities at these nodes is in the local or global system (see Specifying the Directions for Nodal Output Nodal contact variables can be contoured on contact surfaces in the Visualization module of Abaqus/CAE. steps['Step-1']. For example, if NUMBER INTERVAL =10, Abaqus/Explicit will write 11 output database states Nodal mass and inertia The explicit integration scheme in Abaqus/Explicit requires nodal mass or inertia to exist at all activated degrees of freedom (see Conventions) unless constraints are applied using boundary conditions. The first set of tests verifies that temperature and field variable data are properly transferred from a heat transfer analysis to a structural analysis using the results file for various combinations of the *TEMPERATURE and *FIELD options. Can anyone enlighten me Nov 15, 2010 · I'm trying to print a nodal value for the displacement of a node from the previous step. In this case you must specify the number of field variables to be updated simultaneously, and the user subroutine will be called each time the field variable Any since changes such properties to the field can variables the defined user subroutine as functions are of local field to variables; the material point: the nodal field variables retain the values defined Give the identifying keys for the nodal variables to be monitored. In general, if a key corresponds to a collective output variable, rather than an individual component, it can be used with GETVRN. Output variablesOutput is provided with the commands *NODE FILE and *EL FILE in the . In this context the terms “matrix” and “vector” refer to matrices and vectors in the space of the nodal variables . In connector elements with constrained components of relative motion, Abaqus/Standard uses Lagrange multipliers to enforce the kinematic constraints. Mechanical analysis–nodal quantities CFORCE Field: yes History: no . Abaqus contains capabilities such as structural elements (beams and shells) for which it is necessary to define arbitrarily large magnitudes of rotation; therefore, a convenient method for storing the rotation at a node is required. UACT Field: yes History: yes . 2) unless constraints are applied using boundary conditions. Repeat the second data line as often as necessary to define the list of variables to be output to the output database. How node-based field output results are computed Node-based field output variables are written to the output database at each node, along with any nodal transformations applied during model creation. This method is well-suited for cases in which there are dependencies between some of the field variables. If nodal field output is requested for a node that has a local coordinate system defined, a quaternion representing the rotation from the global directions is written to the output database. Abaqus/Explicit will always write the results at the beginning of the step. I am analysing a linear element (wire) for which I defined a gradient. All nodes with a nodal connectivity number that is less than the next connectivity number for which a list of degrees of freedom is specified will have the first list of degrees of Coupled temperature-displacement elements that have both displacements and temperatures as nodal variables are available in both ABAQUS/Standard and ABAQUS/Explicit (see Choosing the appropriate element for an analysis type, Section 21. lastFrame = odb. The keys are defined in the “Nodal variables” portion of . It is useful only during equilibrium iterations with the normal time incrementation, as indicated by LFLAGS(3)=1. History output will be written every increment. You can request nodal variable output to the results or output database file. 4 of the ABAQUS Example Problems Manual. dat file (ASCII). frd files are much shorter and can be faster read by CalculiX GraphiX. The odb format however requires the use of Abaqus libraries to be read. , at integration points), or both. fil: no . For more information, see Part VI, Elements,” of the ABAQUS Analysis User's Manual. This method can be used only for cases in which the field variables are independent of each other. In this context the terms “matrix” and “vector” refer to matrices and vectors in the space of the nodal variables uN u N. Module abaqusConstants contains constant strings used in modelling, i. This option is used to write contact, element, energy, nodal, or diagnostic output to the output database. ) at all degrees of freedoms associated with the element, as well as values, at the beginning of the current increment, of the solution-dependent Probe annotations display the node's label and the results at the node for the current field output variable. Element nodal data follow the order of nodal connectivity defined in the User's Manuals. Symbol plots allow you to visualize the magnitude and direction of vector and tensor variables in the form of symbols (arrows) superimposed on the model. 2. If a reference mesh is specified for an element, no initial stress or strain can be specified for the same element. The second set of tests verifies the use of these In Abaqus/Standard you can introduce dependence on solution variables with user subroutine USDFLD. fil: yes Displacement components. Notice that some of the keys apply to specific domains. The extrapolation order depends on the element type; for second-order, reduced-integration elements Abaqus/CAE uses linear extrapolation to calculate the nodal values of element variables. Even if a local coordinate system has been defined at a node (Transformed Coordinate Systems), the data in the results file and the selected results file are still output in the global directions. fil: yes Coordinates of the node. The A linear constraint equation is defined in Abaqus by specifying: the number of terms in the equation, N; the nodes, P, and the degrees of freedom, i, corresponding to the nodal variables uP i u i P; and the coefficients, An A n. Additional solution variables In Abaqus/Standard there can be up to three additional constraint variables related to forces and a moment associated with the connector. Abaqus/Standard will calculate the response for only the element and nodal variables requested. For nodal, connector element, and some whole surface contact output variables, history output requests can be used to define sensors. You can choose the nodal variable (called the deformed field output variable) for which Abaqus/CAE displays results, and you can choose the step and frame of these results. I think stress and strain are field variables but what is state variable here? Is it necessary to define state variable? Output blocks are added to load steps (*STEP). Node-based submodeling is the more general technique, supporting a variety of element type combinations and procedures in both Abaqus/Explicit and Abaqus/Standard. The length of the arrow For nodal variables 1, 2, and 3 are global directions (1= X, 2= Y, and 3= Z; or for axisymmetric elements, 1= r and 2= z). Binary . In Abaqus/Standard you can request vector-valued nodal variables in the local directions defined by nodal transformations, which is the default for nodal output requests to the data file. Symbol plots show the magnitude and directions of a particular vector or tensor variable at a specified step and frame of the analysis. The following parameters are optional and valid only if the FIELD parameter is included NUMBER INTERVAL Set this parameter equal to the number of intervals during the step at which the output database states are to be written. The keys are defined in Abaqus/Standard output variable identifiers and Abaqus/Explicit output variable identifiers. For the general-purpose C3D10HS 10-node tetrahedra in Abaqus/Standard improved stress visualization is obtained through an 11-point integration rule, consisting of 10 integration points at the elements' nodes and one integration point at their centroid. The definition of the mass matrix introduced above is the “consistent” mass: the mass matrix obtained by consistent use of the interpolation. Output blocks must be added to the corresponding load steps for them to be written out to the Abaqus deck. The first-order elements in Abaqus all use “lumped” mass, where the mass matrix is a allows you to define field variables at a material point as functions of time or of any of the available material point quantities listed in the Output Variable Identifiers table ( ABAQUS/Standard output variable identifiers, Section 4. If the NSET parameter is omitted but the ELSET parameter is used, the recovery matrix corresponding to all the element nodes in the specified element set is generated. Repeat this data line as often as necessary: each line defines a table. 0; you can specify a cross-sectional area associated with every node in the node-based surface when the surface is defined or, alternatively, assign the same area to every node through the contact property definition. For nodal variables 1, 2, and 3 are global directions (1= X, 2= Y, and 3= Z; or for axisymmetric elements, 1= r and 2= z). Accordingly, in Abaqus/Standard the constraint forces and moments carried by the element appear as additional solution variables. As you position the cursor over a node in the model plot in the current viewport, ABAQUS/CAE highlights the node and displays its label in the Probe Values dialog box. In an ABAQUS/Standard analysis it is also used to write modal or radiation output to the output database. ABAQUS/CAE automatically uses this quaternion to transform the nodal results into the local directions. from odbAccess import * odb = openOdb(path='viewer_tutorial. When the nodal output variables on the output database file are on nodes that are not present in the mesh for the current analysis, they Oct 25, 2014 · Hello all, I have some problems understanding the meaning of the two notions NT and TEMP. In an ABAQUS/Explicit analysis it must be used in conjunction with the *FILE OUTPUT option. 4). This node set must contain all nodes for which node output can be requested in a substructure usage analysis. Abaqus/CAE calculates nodal values of element variables by extrapolating the data from the integration points to the nodes. fil in the tables in ABAQUS/Standard output variable identifiers, Section 4. Individual variable updates By default, only one field variable at a time can be updated in user subroutine UFIELD. ABAQUS/Standard will restrict the time increments to ensure that this value is not exceeded at any node (except nodes with boundary conditions) during any increment of the analysis (see Time integration accuracy in transient problems, Section 7. The sets branch terminates in a container holding the names and node or element labels of the Abaqus/Standard output variable identifiers Element integration point variables Element centroidal variables Element section variables Whole element variables Element face variables Whole element energy density variables Whole element error indicator variables Nodal variables Modal variables Surface variables Cavity radiation variables Section The display of node-based field output variables (such as displacement), quilt contour plots, and plots of discontinuities does not involve value averaging. In an ABAQUS/Explicit analysis it is also used to write incrementation output to the output database. Possible values are ELEMENT_CENTROID, ELEMENT_FACE, ELEMENT_NODAL, GENERAL_PARTICLE, INTEGRATION_POINT, NODAL, WHOLE_ELEMENT, WHOLE_MODEL, WHOLE_PART_INSTANCE, and WHOLE_REGION. , up to four terms per line. The linear thick-walled pipe elements have two additional variables, and the quadratic thick-walled pipe elements have four additional variables relating to the hoop and radial strain components. Results file and field-type output The keys are defined in Abaqus/Standard Output Variable Identifiers and Abaqus/Explicit Output Variable Identifiers. Forced convection of a fluid through the mesh can be modeled by using forced convection/diffusion elements. Repeat this data line as often as necessary to define the Contact nodal area for each node with active contact forces in general contact, based on area contributions from adjacent surface facets projected to a plane perpendicular to the current nodal contact normal force vector. The keys are defined in the “Nodal variables” portion of ABAQUS/Standard output variable identifiers, Section 4. Any variable available for history-type output to the output database can be specified. These containers can be used to classify the four main branches of the output database: The mesh branch terminates in a container holding nodal coordinates and element connectivity information for the model. Variable label: A String specifying the variable; for example, 'U'. To define predefined fields at different times in the current analysis, you can read nodal temperatures, normalized concentrations, or electric potentials stored as a function of time in the output database file. If nodal field output is requested for a node that has a Aug 5, 2006 · However, please note that you still will not be able to combine this field output with nodal variables like pore pressure. If you display a view cut to investigate a symbol plot of a nodal output variable, Abaqus/CAE interpolates values from the nodes closest to the view cut surface and draws these interpolated vector arrows on the view cut surface. Is there a variable that will do this? The variable "U" seems to be the displacement from the base node. Each symbol starts at the location in the model where the value was obtained; symbols representing nodal quantities appear at nodes, and symbols representing integration point quantities appear at integration points. 10. Uncoupled heat transfer analysis is used to model solid body heat conduction with general, temperature-dependent conductivity, internal energy (including latent heat effects), and quite general convection and radiation boundary conditions, including cavity radiation. A symbol plot can also For derived variables, such as stress invariants, Abaqus/Standard first averages the extrapolated tensor components over all of the elements connected to the node to obtain unique components at each node and then calculates the derived value based on the averaged components. Nodes can be removed for the current problem. 1 of the ABAQUS Analysis User's Manual. For information on selecting the # odbRead. Both methods are available for field and history output requests and for the individual output requests used for requesting specific variable types (for example, nodal, element). dat: yes All physical displacement components, including rotations at nodes with rotational degrees of freedom (for output to the output database, only field-type output includes the rotations). 1 of the ABAQUS Analysis User's Manual) except the user-defined output variables UVARM and UVARMn; can be used to introduce solution-dependent material Results and discussion The nodal and elemental results in Step 2 of the import analysis are the same as those in Step 1 of the previous analysis. The hybrid beam and pipe elements have additional variables relating to the axial force and transverse shear force. You can customize the font and color of the annotation text. odb Field: yes . These variables remain constant while a slave node is not in contact. frames[-1] # Create a variable that refers to Feb 3, 2024 · How to obtain Abaqus reaction force? This blog is right for any Abaqus user looking for a comprehensive guide on Abaqus Reaction Force (Abaqus RF). When MISES or RMISES output is requested, Abaqus/Standard stores the needed data in the output database (. For nodal variables, 1, 2, and 3 refer to the global directions (1= X, 2= Y, 3= Z except for axisymmetric elements, in which case 1= R, 2= Z). You can choose other systems locally for input (see Node definition), for output of nodal variables (displacements, velocities, etc. A linear multi-point constraint requires that a linear combination of nodal variables is equal to zero; that is, , where is a nodal variable at node P, degree of freedom i; and the are coefficients that define the relative motion of the nodes. Jul 24, 2011 · Hi everyone; I'm writing a subroutine to change Young Modulus with changes in both stress and strain. In addition, you can choose to display the following: The first occurrence of an *NODE PRINT keyword card within a step wipes out all previous nodal variable selections for print output. If you are reading results from an output database in an Abaqus/Standard analysis, you can specify a scalar nodal output variable to be read and used to initialize the field variable. frd file (binary) and with the commands *NODE PRINT and *EL PRINT in the . Etc. The output variables listed below are available in Abaqus/Standard. If this parameter is omitted, the nodal variables requested for output must be specified on the data lines. The nodal variables that can be written to the output database are defined in the Nodal variables section of Abaqus/Standard output variable identifiers and Abaqus/Explicit output variable identifiers. 3). The keys are defined in ABAQUS/Explicit output variable identifiers, Section 4. You can request nodal variable output to the data, results, or output database file. COORD Field: yes History: yes . May 25, 2018 · Hi Fei Han, this is a bit confusing; the variable COORD is unique in that it can be requested for nodal output, element output (i. For example, to impose the equation Features tested Applications of the *TEMPERATURE, *FIELD, and *PRESSURE STRESS options are tested. Element nodal and unique nodal positions both involve reporting results at the nodes of the model; however, reporting of unique nodal values produces only a single value at each node, whereas reporting of I understand that ABAQUS interpolates or extrapolates from integration points to nodal points, so intuitively this tells me that my integration points are more accurate and to output variables at those points instead of nodes. In Abaqus/Standard the default cross-sectional area is 1. This variable allows you to provide input to the automatic time incrementation algorithms in Abaqus/Standard (if automatic time incrementation is chosen). Data lines to request nodal output in the data file First line Give the identifying keys for the variables to be printed in a table for this node set. If this line is omitted, no nodal output will be printed to the data file. This option is used to choose the nodal variables that will be written to the results (. Repeat this data line as often as necessary to define the The keys are defined in Abaqus/Standard output variable identifiers and Abaqus/Explicit output variable identifiers. If a local coordinate system is defined at a node (see Transformed Coordinate Systems), you can specify whether output to the data or results file of vector-valued quantities at these nodes is in the local or global system Nodal mass and inertia The explicit integration scheme in ABAQUS/Explicit requires nodal mass or inertia to exist at all activated degrees of freedom (see Conventions, Section 1. Would that be correct? I am interested in the maximum and minimum principal stresses as well as deflections. Input File Usage NODE OUTPUT list of output variables Abaqus/CAE Usage Step module: field or history output request editor: Select from list below At each such call ABAQUS/Standard provides the values of the nodal coordinates and of all solution-dependent nodal variables (displacements, incremental displacements, velocities, accelerations, etc. Set TYPE = NODE REF COORDINATE to define the reference mesh (initial metric) for membrane elements in Abaqus/Explicit using node numbers and the coordinates of each node. If inflators are used, use nodal output variables MINFL, MINFLT, and TINFL to obtain time histories of mass flow rate, accumulated mass flow, and inflator temperature for each inflator definition (see Abaqus/Explicit output variable identifiers). In ABAQUS/Explicit linear constraint equations can be used only to constrain mechanical degrees of Set VARIABLE = PRESELECT to indicate that the default nodal output variables for the current procedure type should be written to the output database. These values should correspond to static equilibrium and cannot be changed during the analysis. The output variables listed below are available in Abaqus/Explicit. You can easily obtain reaction forces in Abaqus using XY Data. The output request can be repeated as often as necessary to define output for different node sets. Boundary conditions Boundary conditions can be applied to nodal degree of freedom 11 in any mass diffusion element to prescribe values of normalized concentration (Boundary conditions in Abaqus/Standard and Abaqus/Explicit). hdj crqgs uqrdll cfcvil uccty crdn bczl cqxamb ofav nvz