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: |
| |
iter |
Iteration |
Numlds |
- Data
- Description
- iter
- Keyword denoting the beginning of a new iteration.
- Iteration
- Iteration number.
- Numlds
- Number of load cases for which this output is created.
For each iteration, the following header is used:
| Each iteration section is divided up by subcase.
Output for each subcase starts with a line in the following
format: |
| |
Id |
Number_of_els |
STRS:Spc_id(Datatype) |
- Data
- Description
- Id
- Output identification number for the subcase. This is not the same as
the subcase ID used in the input data.
- Number_of_els
- Number of elements for which this output is requested.
- STRS
- Fixed keyword.
- Spc_id
- SID for SPC's referenced by this subcase.
- Datatype
- Keyword indicating the type of subcase involved.
- LOAD declares data is for a linear static subcase.
Stress information is then provided, for each element, in the following format:
| |
EID |
Stress1 |
Stress2 |
Stress3 |
Stress4 |
Stress5 |
Stress6 |
Stress7 |
Stress8 |
Stress9 |
- Data
- Description
- EID
- Element identification number.
- Stress1
- von Mises stress for 2D and 3D elements, Maximum Axial stress for 1D
elements, or maximum stress in CWELD elements.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- Stress8
- Maximum shear stress for CWELD elements.
- For BAR/BEAM it is the stress at E
at end B. Bearing stress for CWELD elements.
- Stress9
- Bearing stress for CWELD elements.
- For BAR/BEAM it is the stress at F
at end B.
Comments
- The I/O Option Previously Supported Results controls
the frequency of output for analytical results during an optimization.