Adams Basic Package > Adams View > Adams View > Dialog box - F1 help > J - O > Modify FEMDATA

Modify FEMDATA

Elements tab → Data Elements container → FEMDATA

→ Modify

(Classic) Build → Elements → Data Elements → FEMDATA

→ Modify

Produces data files of component loads, deformations, stresses, or strains for input to subsequent finite element or fatigue life analysis. You use the Solver → Settings → Output → More → Durability Files to specify the type of file to produce (for more information, see Solver Settings - Output dialog box help and Adams Durability online help). Adams View will not output to any files unless you specify the format.

For the option:	Do the following:
Tips on Entering Object Names in Text Boxes.
Name	Enter the name of the FEMDATA element to modify.
Type	Select the information that you want output: ■Loads on Rigid Body/Flexible Body - Outputs all external forces (reaction and applied forces except gravity) acting on the specified body and inertial forces of the specified body (angular velocities and accelerations including effects of gravity) as a function of time. Load data will be output in the simulation set of units. ■Modal Deformation - Outputs modal deformations as a function of time of the specified flexible body. Adams View will only export coordinates of the active modes in the simulation. ■Nodal Deformation - Outputs nodal deformations as a function of time of the specified flexible body. Adams View writes the deformations in the simulation set of units. ■Strain - Outputs strain information if strain modes are available in the modal neutral file (MNF) of the specified flexible body. Adams View outputs all six components of strain (normal-X, normal-Y, normal-Z, shear-XY, shear-YZ, shear-ZX). It outputs strains in the basic FEA coordinate system of the flexible body. ■Stress - Outputs stress information if modal stresses are available in the Modal Neutral File (MNF) of the flexible body. Adams View outputs all six components of stress (normal-X, normal-Y, normal-Z, shear-XY, shear-YZ, shear-ZX). It outputs stresses in the simulation set of units in the basic FEA coordinate system of the flexible body. ■Strain on FE Part - Outputs strain information of the specified FE Part when an Adams Durability license is available. Adams Durability outputs all six components of strain (normal-X, normal-Y, normal-Z, shear-XY, shear-YZ, shear-ZX) even though some of these components may be zero by definition of the nonlinear FE Part beam formulation. It outputs strains in the body coordinate system of the FE Part except where specified below. ■Stress on FE Part - Outputs stress information of the specified FE Part when an Adams Durability license is available. Adams Durability outputs all six components of stress (normal-X, normal-Y, normal-Z, shear-XY, shear-YZ, shear-ZX) even though some of these components may be zero by definition of the nonlinear FE Part beam formulation. It outputs stress in the body coordinate system of the FE Part except where specified below.
If you selected Loads on Rigid Body, the following options appear:
R Marker	Enter the rigid body marker to be the reference coordinate system to output loads. Because Adams Solver resolves all loads acting on the rigid body in the coordinate system of the specified marker, the marker should represent the FEA basic coordinate system of the part's finite element model (FEM).
Peak Slice	Select that FEM load data are to be output only at those time steps where the specified peak load occurred in the simulation. With the START and END, Adams View only checks the time steps within those specifications for the peak load. You can specify one or more of FX, FY, FZ, FMAG, and GMAG.
If you selected Loads on Flexible Body, the following options appear:
Flex Body	Enter the name of the flexible body whose data Adams View outputs. Adams View outputs the data in the FEM basic coordinate system that is inherent to the flexible body.
Peak Slice	Select that FEM load data are to be output only at those time steps where the specified peak load occurred in the simulation. With the START and END, Adams View only checks the time steps within those specifications for the peak load. You can specify one or more of FX, FY, FZ, FMAG, GMAG.
If you selected Modal Deformation, the following option appears:
Flex Body	Specifies the name of the flexible body whose data FEMDATA outputs. FEMDATA outputs the data in the FEM basic coordinate system that is inherent to the flexible body.
If you selected Nodal Deformation, the following option appears:
Flex Body	Enter the name of the flexible body whose data FEMDATA outputs. FEMDATA outputs the data in the FEM basic coordinate system that is inherent to the flexible body.
Nodes	Enter the node numbers of a flexible body whose data is to be output. If you do not specify a node list, FEMDATA exports nodal data at each attachment point of the flexible body. Adams Solver issues a warning if a node id is specified that does not belong to the flexible body.
Datum	Enter a node ID of the flexible body to be the datum of the nodal displacements. Adams Solver computes all nodal displacements relative to this node ID. If you do not specify a datum node, Adams Solver generates an arbitrary relative set of nodal displacements. It displays a warning message if the specified node does not belong to the flexible body.
If you selected Stress or Strain, the following two options appear:
Flex Body	Specifies the name of the flexible body whose data FEMDATA outputs. FEMDATA outputs the data in the FEM basic coordinate system that is inherent to the flexible body.
Nodes	Enter the node numbers of a flexible body whose data is to be output. If you do not specify a node list, FEMDATA exports nodal data at each attachment point of the flexible body. Adams Solver issues a warning if a node id is specified that does not belong to the flexible body.
If you selected Stress on FE Part or Strain on FE Part, the following options appear:
FE Part	Enter the FE Part whose data Adams View outputs. Adams Durability outputs the data in the body coordinate system for the FE Part.
On Markers/Hot Spots	Lets you select either output on markers of the FE Part or Hotspots. The options in the dialog box change depending on the selection, as explained in the next rows of the table. For an example of defining hot spots, see the FEMDATA statement and near the end of it, the Definition of Hotspots.
If you selected On Markers, the following options appear:
Markers	Enter the markers of the FE Part whose data is to be output. Adams Solver issues a warning if a marker is specified that does not belong to the FE Part.
R Marker	Optionally, enter a coordinate reference marker in the model that will be used to transform the stress or strain data. If not specified, the stress or strain will be output in the body coordinate system of the FE Part (LPRF). This option can be useful when correlating strain gauge data from a physical test. If the orientation of the strain gauge does not match the FE Part coordinate system, you can reference a marker whose orientation does match.
If you selected Hot Spots, the following options appear:
Hotspots	Enter the number of hot spots to locate and output. With this option, a text file containing a tab-delimited table of hot spot information, such as marker ID, maximum value, time when the maximum value occurred, and location, is generated. Note: When you set the Time options, Adams Durability only checks the time steps within those specifications for the hot spots.
Von Mises/Max Prin/Min Prin.,/Max Shear/Normal-X/Normal-Y/Normal-Z/Shear-XY/Shear-YZ/Shear-ZX	Specify the value of stress/strain in determining hotspots from one of Von Mises, Max Prin., Min Prin., Max Shear, Normal-X, Normal-Y, Normal-Z, Shear-XY, Shear-YZ, Shear-ZX, or Signed von Mises. For more information, see the FEMDATA statement.
Radius	Enter a radius that defines the spherical extent of each hotspot. A default value of 0.0 (zero) means that all markers on the FE Part will be hotspot candidates.
R Marker	Enter a coordinate reference marker in the model that will be used to transform the stress or strain data. If not specified, the stress or strain will be output in the body coordinate system of the FE Part (LPRF). This option can be useful when correlating strain gauge data from a physical test. If the orientation of the strain gauge does not match the FE Part coordinate system, one can reference a marker whose orientation does match.
For all types, set the following options:
File	Enter the output file name for the FEM data. You can specify an existing directory, root name, and/or extension. By default, the file name will be composed of the Adams run and body IDs according to the type of data and file format that you specified in the Solver → Settings → Output → More → Durability Files (for more information, see Adams Durability online help).
Time	Specify the start and end times for outputting the data: ■From - Enter the time at which to start outputting the data. The default is the start of the simulation. ■To - Enter the time at which to end the output of the data or the search of a peak load. The default is to output to the end of the simulation.