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 and linear transient analysis. Output is
controlled by the I/O Option STRESS (or ELSTRESS). |
File Format
The stress file has the following format for linear static analysis:
| 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 Longitudinal stress for
BAR/BEAM 1D elements, or Axial
stress in CWELD elements.
- Stress2
- Normal X-stress at Z1 for 2D elements, Normal X-stress for 3D
elements.
- For BAR/BEAM it is the
longitudinal stress at C at end A. Maximum tensile stress at end A 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
longitudinal stress at D at end A. Minimum 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
longitudinal stress at E at end A. Maximum tensile stress at end B 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
longitudinal stress at F at end A. Minimum 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
longitudinal stress at C at end B. Maximum shear stress 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
longitudinal stress at D at end B. Bearing stress for
CWELD elements.
- Stress8
- For BAR/BEAM it is the
longitudinal stress at E at end B.
- Stress9
- For BAR/BEAM it is the
longitudinal stress at F at end B.
- Stress10
- For BAR/BEAM it is the Axial
stress.
The stress file has the following format for linear transient analysis:
| For each
iteration, the following header is used: |
|
iter |
Iteration |
NumIds |
- Data
- Description
- iter
- Keyword identifying that the next field is the iteration number.
- Iteration
- The iteration number.
- NumIds
- Number of load cases for which this output is created.
Each section under iteration is divided up by subcase. Output for each subcase starts
with a line in the following format:
| Subcase |
Id |
Label |
|
| Time |
Time |
|
|
| Result Type |
(Entity
Type) |
[Format] |
|
Where,
- Data
- Description
- Id
- Output identification number for the subcase. This is not the same as
the subcase ID used in the input data.
- Label
- Subcase level.
- Time
- Time increment information.
- Entity Type
- Beam, Rod, Plate, and so on.
- Format
- Complex, Real, Imaginary, Phase, and so on.
The strain result format information is the same as the linear static analysis
format.
Comments
- The I/O Option Previously Supported Results controls
the frequency of output for analytical results during an optimization.
