.strn file

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:
  iter Iteration Numlds
Data
Description
iter
Keyword denoting the beginning of a new iteration.
Iteration
The Iteration number.
Numlds
The number of load cases for which this output is created.
Each iteration section is divided up by subcase. Output for each subcase starts with a line in the following format:
  Id Number_of_els STRN:Spc_id
Data
Description
Id
The output identification number for the subcase. This is not the same as the subcase ID used in the input data.
Number_of_els
The number of elements for which this output is requested.
STRN
A fixed keyword.
Spc_id
The 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.
Strain information is then provided, for each element, in the following format:
  EID Strain1 Strain2 Strain3 Strain4 Strain5 Strain6 Strain7
Data
Description
EID
The element identification number.
Strain1
von Mises strain for 2D and 3D elements, or Axial strain for 1D elements.
Strain2
Normal X-strain at Z1 for 2D elements, Normal X-strain for 3D elements, or Axial strain for 1D elements.
Strain3
Normal X-strain at Z2 for 2D elements, Normal Y-strain for 3D elements, or Axial strain for 1D elements.
Strain4
Normal Y-strain at Z1 for 2D elements, Normal Z-strain for 3D elements, or Axial strain for 1D elements.
Strain5
Normal Y-strain at Z2 for 2D elements, Shear XY-strain for 3D elements, or Axial strain for 1D elements.
Strain6
Shear XY-strain at Z1 for 2D elements, Shear YZ-strain for 3D elements, or Axial strain for 1D elements.
Strain7
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 Previously Supported Results controls the frequency of output for analytical results during an optimization.