.strs file
The .strs file is an OptiStruct ASCII format results file.
File Creation
This file is created when the OPTI, OS or BOTH formats are chosen. (See documentation for the I/O Option OUTPUT).
File Contents
Result |
Description |
Stress |
Stress results from linear static analysis. Output is controlled by the I/O Option STRESS (or ELSTRESS). |
File Format
The stress file has the following format:
For each iteration, the following header is used: |
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iter |
Iteration |
Numlds |
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where: |
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iter |
is a keyword denoting the beginning of a new iteration. |
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Iteration |
is the Iteration number. |
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Numlds |
is the number of load cases for which this output is created. |
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Each iteration section is divided up by subcase. Output for each subcase starts with a line in the following format: |
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Id |
Number_of_els |
STRS:Spc_id(Datatype) |
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where: |
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Id |
is the output identification number for the subcase. This is not the same as the subcase ID used in the input data. |
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Number_of_els |
is the number of elements for which this output is requested. |
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STRS |
is a fixed keyword. |
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Spc_id |
is the SID for SPC's referenced by this subcase. |
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Datatype |
is a keyword indicating the type of subcase involved. (LOAD) declares data is for a linear static subcase. |
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Stress information is then provided, for each element, in the following format: |
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EID |
Stress1 |
Stress2 |
Stress3 |
Stress4 |
Stress5 |
Stress6 |
Stress7 |
Stress8 |
Stress9 |
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where: |
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EID |
Element identification number. |
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Stress1 |
von Mises stress for 2D and 3D elements, Maximum Axial stress for 1D elements, or maximum stress in CWELD elements. |
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Stress2 |
Normal X-stress at Z1 for 2D elements, Normal X-stress for 3D elements, or Axial stress for 1D elements. For BAR/BEAM it is the stress at C at end A. Axial Stress for CWELD elements. |
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Stress3 |
Normal X-stress at Z2 for 2D elements, Normal Y-stress for 3D elements, or Axial stress for 1D elements. For BAR/BEAM it is the stress at D at end A. Maximum tensile stress at end A for CWELD elements. |
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Stress4 |
Normal Y-stress at Z1 for 2D elements, Normal Z-stress for 3D elements, or Axial stress for 1D elements. For BAR/BEAM it is the stress at E at end A. Minimum tensile stress at end A for CWELD elements. |
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Stress5 |
Normal Y-stress at Z2 for 2D elements, Shear XY-stress for 3D elements, or Axial stress for 1D elements. For BAR/BEAM it is the stress at F at end A. Maximum tensile stress at end B for CWELD elements. |
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Stress6 |
Shear XY-stress at Z1 for 2D elements, Shear YZ-stress for 3D elements, or Axial stress for 1D elements. For BAR/BEAM it is the stress at C at end B. Minimum tensile stress at end B for CWELD elements. |
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Stress7 |
Shear XY-stress at Z2 for 2D elements, Shear XZ-stress for 3D elements, or Axial stress for 1D elements. For BAR/BEAM it is the stress at D at end B. Maximum shear stress for CWELD elements. |
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Stress8 |
Maximum shear stress for CWELD elements. For BAR/BEAM it is the stress at E at end B. Bearing stress for CWELD elements. |
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Stress9 |
Bearing stress for CWELD elements. For BAR/BEAM it is the stress at F at end B. |
Comments
1. | The I/O Option RESULTS controls the frequency of output for analytical results during an optimization. |