Simulation of the nuclear fuel assembly drop test with LS-Dyna

Performance of the Hybrid LS-DYNA on Crash Simulation with the Multicore Architecture

Using crash simulation models, we investigate the multicore performance of the newly developed hybrid LS-DYNA, a method whose speedup arises from both shared-memory and message-passing parallelisms. Theoretically, the hybrid method gains performance advantages over the traditional, message-passing-parallel (MPP) LS-DYNA for two reasons. First, the addition of shared-memory parallelism to the me...

LS-DYNA® Best-Practices: Networking, MPI and Parallel File System Effect on LS-DYNA Performance

From concept to engineering, and from design to test and manufacturing, the automotive industry relies on powerful virtual development solutions. CFD and crash simulations are performed in an effort to secure quality and accelerate the development process. The recent trends in cluster environments, such as multi-core CPUs, GPUs, cluster file systems and new interconnect speeds and offloading ca...

LS-DYNA Impact Simulation of Composite Sandwich Structures with Balsa Wood Core

The impact damage response of balsa core sandwich composite plates with S2-glass/ epoxy reinforced facesheets is evaluated by impacting them with a spherical steel projectile at single impact locations. The impact damage can significantly reduce the structural integrity and load bearing capacity of a composite structure. Under high velocity impact loading, laminated composites experience signif...

Development of Guidelines for Deformable and Rigid Switch in Ls-dyna Simulation

An inverse approach for material parameter identification in a cyclic bending test using LS-DYNA and LS-OPT

The residual stresses in the blank after forming are the main cause for the subsequent springback in a sheet forming operation. The accuracy of the predicted springback in a Finite Element simulation of the forming operation is very much determined by the quality of the material modeling. Those parts of the workpiece, which in particular contribute to the global springback, have usually been su...