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eCADFEM
Engineering Software on Demand
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eCADFEM

LS-DYNA

LS-DYNA: Livermore Software Technology Corp. (LSTC)

LS-DYNA is a multi-purpose, explicit and implicit finite element program used to analyze the nonlinear dynamic response of structures. Its fully automated contact analysis capability, a wide range of constitutive models to simulate a whole range of engineering materials (steels, composites, foams, concrete, etc.), error-checking features and the high scalability have enabled users worldwide to solve successfully many complex problems.

Features

LS-DYNA has many features to simulate the physical behavior of 2D and 3D structures: nonlinear dynamics, thermal, failure, contact, quasi-static, Eulerian, Arbitrary-Lagrangian-Eulerian (ALE), Fluid-Structure-Interaction (FSI), multi-physics coupling, etc.

LS-DYNA runs on a variety of platforms, including Intel based PCĺs (Windows, Linux), UNIX workstations, supercomputers, and massively parallel computers. The code is fully vectorized and takes advantage of multiple processors by shared-memory computing (SMP). In addition, domain decomposition is available. Parts of a job are distributed to several machines with separate processors and memories (MPP). The main advantage of MPP is the better performance in terms of CPU timing and scalability, when many CPUĺs are used.

LS-DYNA's most prominent application areas are crashworthiness analysis and sheet metal forming analysis.

Additionally LS-DYNA is extensively used to simulate impacts on structures from drop tests, underwater shock, explosions or high-velocity impacts. Explosive forming, process engineering, accident reconstruction, vehicle dynamics, thermal brake disc analysis or nuclear safety are further areas in the broad range of possible applications. In leading-edge research LS-DYNA is used to investigate the behaviour of materials like composites, ceramics, concrete, or wood. Moreover, it is used in biomechanics, human modelling, molecular structures, casting, forging, or virtual testing.

The continual development of the implicit solver capabilities makes LS-DYNA an all-encompassing engineering tool for virtual product design and development.

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