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OptiStruct New Features

What's new in OptiStruct 14.0? Watch the video to see what's new in the most recent release of OptiStruct.

View all HyperWorks 14.0 New Features See all the HyperWorks new features available in this release. Go to the New Feature Library
OptiStruct 14.0 provides a huge amount of new features and enhancements. Many improvements have been made for nonlinear capabilities of the OptiStruct solver concerning contacts, non-linear geometries or material. A new contact algorithm for linear materials is available to speed up contact simulations by huge amounts. Further enhancements have been made for NVH and thermal analyses. The new release also provides similar amounts of enhancements for its market leading optimization technology.

Here are some of the highlights of the OptiStruct 14.0 release:

Nonlinear Analysis

  • Finite sliding contact is now available to simulate large sliding at the contact interface.

  • A new fast contact algorithm is available for cases where the only source of nonlinearity in the model is the contact. This provides huge time savings in calculation time while maintaining the same accuracy.

  • Large displacement support for 1D elements has been added. 1D bolt pretensioning is now available for large displacement analysis.

  • Follower pressures and forces are now supported in large displacement nonlinear analysis. Pressures and forces are now dependent on the deformation of a structure with regard to both, direction and area.

  • Loads can be defined time dependent.

  • The Arruda-Boyce Model is now supported for Hyperelastic Materials.

Noise and Vibration

  • The automated transfer path analysis process has stability and accuracy improvements, SPCD support, and Direct Frequency Response Analysis support.

  • Preloading is supported and can be applied to Modal Frequency Response Analysis and Direct/Modal Transient Response Analysis subcases. Pretension and contact can now be run in Component Mode Synthesis (CMS) analysis.

Thermal analysis

  • Transient temperature at multiple time steps can now be applied in thermal-structure coupling analysis. The time dependent temperature and stress results are available in the .h3d results file.

  • Material can now be defined temperature dependent.

General analysis enhancements

  • Dynamic Design Analysis Method (DDAM) for structures exposed to underwater explosion is now available.

  • Stress and strain results are available at the integration points now.


  • Enhanced Stress Responses for Topology Optimization is now available. Stress Responses for Topology Optimization can now be subcase-specific,

    component-based, and they are not limited to von Mises stresses.

  • For Free-Shape optimization a “Grow or Shrink” result type is available.

  • Outputs of user-defined responses to the H3D file are supported. This allows the post-processing of user defined responses (DRESP1, DRESP2, and DRESP3 bulk data entries) in HyperView and HyperGraph.

  • For composites optimization, stress, strain and failure outputs from the top, middle or bottom of a ply can be used as response.

  • An enclosed volume of shell elements can be used as response for shape, free-shape and topography optimization.

  • Resultant section forces are available as responses.

  • Lattice structures can now consist of tapered beams. Smoothing and re-meshing is possible throughout lattice optimization.


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Large sliding contact Arruda Boyce material support Geometric nonlinear loads Pretension and contact can now be included in Component Mode Synthesis (CMS) analyses 3D printed façade spider bracket Tapered Lattice beam examples Comparison of small vs. large displacement analysis results
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