DYNA3D: A computer code for crashworthiness engineering

Conference · Mon Sep 01 00:00:00 EDT 1986

OSTI ID:6865374

Hallquist, J O; Benson, D J

A finite element program with crashworthiness applications has been developed at LLNL. DYNA3D, an explicit, fully vectorized, finite deformation structural dynamics program, has four capabilities that are critical for the efficient and realistic modeling crash phenomena: (1) fully optimized nonlinear solid, shell, and beam elements for representing a structure; (2) a broad range of constitutive models for simulating material behavior; (3) sophisticated contact algorithms for impact interactions; (4) a rigid body capability to represent the bodies away from the impact region at a greatly reduced cost without sacrificing accuracy in the momentum calculations. Basic methodologies of the program are briefly presented along with several crashworthiness calculations. Efficiencies of the Hughes-Liu and Belytschko-Tsay shell formulations are considered.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6865374
• Report Number(s): UCRL-95152; CONF-8611126-1; ON: DE87003818
• Resource Relation: Conference: 15. international finite element congress, Baden-Baden, F.R. Germany, 17 Nov 1986; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

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99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
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