HyperGraph Interface with OptiStruct
This section explains how HyperGraph interfaces with the OptiStruct solver.
For information on hgopt, refer to External Readers.
- OptiStruct OPTI(ASCII) format.
- Time history plots from *.h5 files generated from OptiStruct explicit analysis.
The figure below compares the old and new OPTI formats using ELFORCE (.force) as an example, which has improved readability.

Figure 1.
| Result Type | Analysis Types | 
|---|---|
| DISPLACEMENT | Linear Static, Normal modes, Linear buckling analysis. | 
| DISPLACEMENT | Frequency response analysis (Direct and Modal) in REAL/IMAG or MAG/PHASE formats. | 
| VELOCITY | |
| ACCELERATION | |
| SPCFORCE | Linear Static, Frequency response analysis (Direct and Modal) *. | 
| MPCFORCE | 
| Elements | Linear Static Analysis | Normal Modes Analysis | Frequency Response Analysis (Direct and Modal) | Response Spectrum Analysis | 
|---|---|---|---|---|
| CELAS1, CELAS2 | ELFORCE, STRESS, STRAIN | ELFORCE, STRESS, STRAIN | ELFORCE, STRESS, STRAIN | STRESS, STRAIN | 
| CROD | ||||
| CBAR | ||||
| CWELD | STRESS, STRAIN | |||
| CGAP | ELFORCE, STRESS, STRAIN | |||
| CSHEAR | ||||
| CFAST | ||||
| CBUSH | ||||
| Shells (CTRIA3, CTRIA6, CQUAD4, CQUAD8) | ||||
| Solids (CHEXA, CPENTA, CTETRA, CPYRA) | STRESS, STRAIN | STRESS, STRAIN | STRESS, STRAIN | |
| Axisymmetric Elements (CTAXI3, CTAXI4, CQAXI4, CQAXI8) | ||||
| Plane Strain Elements (CTPSTN3, CTPSTN6, CQPSTN4, CQPSTN8) |