Bulk Data Echo Request
Description: Element Strain Output Request.
Format:
Example:
ELSTRAIN(VONMISES, CORNER) = 45
| Option | Definition | Type | Default |
|---|---|---|---|
| Element strains will be output to both the Model Results Output File and the results neutral file system. | Character | ✓ | |
| PLOT | Element strains will be output only to the results neutral file system. | Character | |
| PUNCH | Element strains will be output additionally to the Model Results Punch File. | Character | |
| CENTER | Output shell and solid element strains at the center only. | Character | ✓ |
| CORNER | Output shell and solid element strains at the center and corner nodes. | Character | |
| GAUSS | Output shell and solid element strains at the center and gauss/integration points. | Character | |
| SHEAR | Maximum shear strain request for shell elements and octahedral shear strain request for solid elements. | Character | |
| VONMISES | Von Mises strain request for shell and solid elements. | Character | ✓ |
| TRESCA | Tresca strain request for shell and solid elements. | Character | |
| REAL or IMAG | Requests complex output in rectangular format (real and imaginary). | Character | ✓ |
| PHASE | Requests complex output in polar format (magnitude and phase). Phase output is in degrees. | Character | |
| STRCUR | Strain at reference plane and curvatures are output for shell elements. | Character | |
| FIBER | Strain at locations Z1 and Z2 are output for shell elements. | Character | ✓ |
| PSDF | Power spectral density function, RMS, and number of positive crossings output request. | Character | |
| ATOC | Autocorrelation function output request. | Character | |
| RALL | Both PSDF and ATOC will be output. | Character | |
| VRMS | RMS von Mises output request. | Character | |
| BIAX | Biaxiality ratio output request. | Character | |
| VALL | RMS von Mises, RMS principal, RMS maximum shear, and biaxiality ratio will be output. | Character | |
| THERMAL | Thermal strain request for shell and solid elements. | Character | |
| MECH | Mechanical strain request for shell and solid elements. | Character | |
| TOTAL | Total strain (thermal plus mechanical) request for shell and solid elements. | Character | ✓ |
| ALL | Element strains for all elements will be output. | Character | |
| n | Set identification of previously appearing SET command. Only strains for elements whose identification numbers appear on this SET command will be output. | Integer > 0 | |
| NONE | Element strains will not be output. | Character | ✓ |
Remarks:
- STRAIN is an alternate form and is entirely equivalent to ELSTRAIN.
- Both STRESS and STRAIN cannot be requested in the same subcase.
- Shell elements must be referenced on a SURFACE and solid elements must be referenced in a VOLUME. (See the SURFACE and VOLUME commands in Section 3, Case Control.)
- See the STRAIN command in Section 3, Case Control, for the equations used to calculate strain invariants.
- If the MECHSTRAIN model parameter is set to ON (default is OFF), mechanical strain will be output regardless of settings on this command. (See Section 5, Parameters, for more information on MECHSTRAIN.)