The .strn file is an ASCII format results file.
File Creation
This file is created when OPTI, OS, or ASCII formats are chosen. (See documentation for the I/O Option OUTPUT).
File Contents
Result |
Description |
Strain |
Strain results from linear static analysis. Output is controlled by the I/O Option STRAIN. |
File Format
The strain 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 |
STRN:Spc_id |
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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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STRN |
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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Strain information is then provided, for each element, in the following format: |
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EID |
Strain1 |
Strain2 |
Strain3 |
Strain4 |
Strain5 |
Strain6 |
Strain7 |
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where: |
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EID |
is the element identification number. |
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Strain1 |
is von Mises strain for 2D and 3D elements, or Axial strain for 1D elements. |
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Strain2 |
is Normal X-strain at Z1 for 2D elements, Normal X-strain for 3D elements, or Axial strain for 1D elements. |
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Strain3 |
is Normal X-strain at Z2 for 2D elements, Normal Y-strain for 3D elements, or Axial strain for 1D elements. |
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Strain4 |
is Normal Y-strain at Z1 for 2D elements, Normal Z-strain for 3D elements, or Axial strain for 1D elements. |
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Strain5 |
is Normal Y-strain at Z2 for 2D elements, Shear XY-strain for 3D elements, or Axial strain for 1D elements. |
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Strain6 |
is Shear XY-strain at Z1 for 2D elements, Shear YZ-strain for 3D elements, or Axial strain for 1D elements. |
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Strain7 |
is Shear XY-strain at Z2 for 2D elements, Shear XZ-strain for 3D elements, or Axial strain for 1D elements. |
Comments
1. | The I/O Option RESULTS controls the frequency of output for analytical results during an optimization. |