Recent Developments in Isogeometric Analysis with Solid Elements in LS-DYNA ®

Isogeometric analysis (IGA), which uses the same geometry from CAD (computer-aided design) for numerical analysis, has been studied more and more in the past few years. The continuous development of IGA with shell and solid element has been added to LS-DYNA. Many of the standard analysis capabilities in LS-DYNA are now available for IGA such as explicit and implicit analysis. In this paper, we will provide updates on IGA: dynamics analysis using IGA solid, the implementation of user defined material including anisotropic material modeling and support for unstructured Spline capabilities through their Bézier extractions.