STRUCTURAL COLLAPSE AND VEHICULAR CRASH SIMULATION USING A PLASTIC HINGE TECHNIQUE.

Parviz E Nikravesh, In Soo Chung

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

This paper presents a computer-based method for formulation and efficient solution of nonlinear, constrained differential equations of motion for spatial dynamic analysis of mechanical systems and its application to automobile crash simulation. Nonlinear holonomic constraint equations and differential equations of motion are written in terms of a maximal set of Cartesian generalized coordinates, three translational and four rotational coordinates for each rigid body in the system, where the rotational coordinates are Euler parameters. A numerical integration algorithm with positive-error control, employing a predictor-corrector algorithm with variable order and step size, integrates for only the independent variables, yet effectively determines dependent variables. The program is used to analyze plastic deformations of structures by employing a plastic hinge concept.

Original languageEnglish (US)
Pages (from-to)371-400
Number of pages30
JournalJournal of Structural Mechanics
Volume12
Issue number3
StatePublished - 1984
Externally publishedYes

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crashes
hinges
Crash
Hinges
Equations of motion
Plastics
equations of motion
Differential equations
differential equations
plastics
dependent variables
Cartesian coordinates
Equations of Motion
automobiles
rigid structures
numerical integration
Dynamic analysis
Differential equation
Automobiles
plastic deformation

ASJC Scopus subject areas

  • Engineering(all)

Cite this

STRUCTURAL COLLAPSE AND VEHICULAR CRASH SIMULATION USING A PLASTIC HINGE TECHNIQUE. / Nikravesh, Parviz E; Chung, In Soo.

In: Journal of Structural Mechanics, Vol. 12, No. 3, 1984, p. 371-400.

Research output: Contribution to journalArticle

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