Nonlinear axisymmetric analysis with OptiStruct.
Product: OptiStruct
Product Version: OptiStruct 2019.0 or above
Topic Objective
Nonlinear axisymmetric analysis with OptiStruct.
Topic Detail
Analyzing a symmetrical portion of a structure means faster processing than if you modeled the whole structure.Axisymmetric CTAXI with 3 and 6 node tria-elements, where always available for linear analysis. From 2019.0 we support axisymmetric quad-elements with 4 or 8 nodes.
Axisymmetric Elements
Axisymmetric are available for tria & quad elements for both
1st order
2nd order
For linear analysis, & nonlinear static analysis
- Small displacement
- Large displacement
Contact support for Axisymmetric elements (Supported from V 2019.1)
- N2S and S2S CONTACT and TIE are supported for axisymmetric modeling.
- Currently, contact for axisymmetry is supported only for small sliding.
- The Contact Smoothing option is also not supported.
Axisymmetric are not supported yet for:
- Inertia relief analysis in LGDISP nonlinear analysis
- Hyper-elastic materials
- Optimization with non-linear
