LS-DYNA is a general-purpose, explicit finite element program used to analyze the nonlinear dynamic response of three-dimensional structures. Its fully automated contact analysis capability and error-checking features have enabled users worldwide to solve successfully many complex problems. LS-DYNA has many solution procedures to simulate the physical behavior of 3D structures: nonlinear dynamics, thermal, failure, crack propagation, contact, quasi-static, Eulerian, arbitrary Lagrangian-Eulerian (ALE), fluid structure interaction, real-time acoustics, multi-physics coupling, etc. The lower order finite elements in LS-DYNA are accurate, efficient, simple and fast. For the under-integrated shell and solid elements, zero-energy modes are controlled by either and hourglass viscosity or stiffness.

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