Strain Stress Shape Generation makes stress and/or strain shape in case the RFI file has no information about the stress or strain shape. The generated strain and/or stress shape is computed using the strain and stress recovery function for the RecurDyn/RFlex.
Figure 1 Str.Shape icon of the RFlex group in the Flexible tab
First of all, you should define the path that RFI file exists and select Stress Shape or Strain Shape. And user can set the shell recovery type. If user choose “Top”, the stress and strain shape are top surface result for their shell type elements. If user choose “Bottom”, the stress and strain shape are bottom surface result.
Because RFI file has the mode shape information and element information, it is possible to generate stress or strain shape without simulation. If the RFI file has no element information, this function will not perform.
Figure 2 Strain Stress Shape Generation dialog box
This function does support only some elements so, please refer to the below table.
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Generate Shape supported Element | |
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Ansys |
Plane2, Plane25, Plane42, Plane82, Plane83, Shell28, Shell41, Shell43, Shell63, Shell91, Shell93, Shell99, Shell181, Solid45, Solid46, Solid64, Solid65, Solid72, Solid73, Solid92, Solid95, Solid185, Solid186, Solid187 |
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Nastran |
CTRIA3, CTRIA6, CQUAD4, CQUAD8, CTETRA, CPENTA, CHEXA |
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I-DEAS |
Thin Shell Linear Triangle, Thin Shell Parabolic Triangle, Thin Shell Linear Quadrilateral, Thin Shell Parabolic Quadrilateral, Plane Stress Linear Triangle, Plane Stress Parabolic Triangle, Plane Stress Linear Quadrilateral, Plane Stress Parabolic Quadrilateral, Plane Strain Linear Triangle, Plane Strain Parabolic Triangle, Plane Strain Linear Quadrilateral, Plane Strain Parabolic Quadrilateral, Solid Linear Tetrahedron, Solid Parabolic Tetrahedron, Solid Linear Wedge, Solid Parabolic Wedge, Solid Linear Brick, Solid Parabolic Brick |
Note
Stress and strain generation function only considers supported elements. Therefore, if all including elements of a RFI are not the supported element, the stress and strain result of all nodes will always be zero. If a RFI has both the supported elements and the not-supported elements, the stress and strain result of a node which is only connected with not-supported elements always be zero.