LS-DYNA Examples
LS-DYNA is a general-purpose finite element program capable of simulating complex real world problems. It is used by the automobile, aerospace, construction, military, manufacturing, and bioengineering industries. The code’s origins lie in highly nonlinear, transient dynamic finite element analysisFEA stands for Finite Element Analysis, which is a computer-... using explicit time integration. It is used for analyzing high speed, short duration events where inertial forces are important. Typical uses include automotive crash, explosions, manufacturing etc.
Large LS-DYNA models can be computationally intensive and Rescale provides a platform with easy work flow to run such models across multiple cores. Given below are some benchmark LS-DYNA models on Rescale’s platform, ScaleX.
LS-DYNA Neon Example with Distributed Memory Parallel (DMP) Mode
A truncated version of the neon_refined_revised benchmark.
| Simulation Code | LS-DYNA R11.0.0 |
| Analysis Type | FEA |
| Description | This is a modified version of the neon_refined_revised benchmark. It has been shortened to have an end time of 0.01s. Frontal crash with initial speed at 31.5 miles/hour Model created by National Crash Analysis Center (NCAC) at George Washington University. One of the few publicly available models for vehicle crash analysis, based on 1996 Plymouth Neon. |
| Suggested Hardware | Emerald / 4 cores |
| Command |
ls-dyna -i neon.refined.rev01.k -p single |
| Estimated Run Time | 8 minutes |
| Previous versions | Import Job Setup LS-DYNA R9.0.0 |
LS-DYNA 3 Car Example with Shared Memory Parallel (SMP) Mode
A 3 car collision simulation.
| Simulation Code | LS-DYNA R11.0.0 |
| Analysis Type | FEA |
| Description | This is a 3 car collision simulation, where a compact car is hit from the rear by a van and collides into a mid-size car. This is a modified version of the simulation which was shortened to have an end time of 0.020s. NCAC is responsible for the vehicle models and this simulation was put together by Mike Berger, consultant to LSTC. |
| Suggested Hardware | Emerald / 8 cores |
| Command |
ls-dyna -s $RESCALE_CORES_PER_SLOT -i 3cars_shell2_20ms_v11.k -p single |
| Estimated Run Time | 31 minutes |
| Previous versions | Import Job Setup LS-DYNA R9.0.0 |
LS-DYNA Car2Car Example with Hybrid Parallel (SMP + DMP) Mode
A 2 car collision simulation of NCAC minivans.
| Simulation Code | LS-DYNA R11.0.0 |
| Analysis Type | FEA |
| Description | This is a modified version of the car2car benchmark supplied by Dr. Tsay, LSTC. It has been shortened to have an end time of 0.01s. This model uses a NCAC minivan model created by Dr Makino and analyses a head-on collision between 2 vehicles with initial velocities 15.64m/s and -15.64m/s respectively. |
| Suggested Hardware | Emerald / 18 cores |
| Command |
ls-dyna -n 9 -s 2 -i Caravan-V03c-2400k-main-shell16-10ms.k -p single |
| Estimated Run Time | 71 minutes |
| Previous versions | Import Job Setup LS-DYNA R9.0.0 |