Structural Collapse and Vehicular Crash Simulation Using a Plastic Hinge Technique

Research output: Contribution to journalArticle

11 Scopus citations

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 differentia! 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. The structure is divided into several components that are connected by plastic hinges. Each plastic hinge is modeled by a joint-spring combination to represent the elastoplastic structural characteristics. It is shown that the program with the.

Original languageEnglish (US)
Pages (from-to)371-400
Number of pages30
JournalJournal of structural mechanics
Volume12
Issue number3
DOIs
StatePublished - Jan 1 1984
Externally publishedYes

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mathematics(all)
  • Automotive Engineering
  • Aerospace Engineering
  • Condensed Matter Physics
  • Ocean Engineering
  • Mechanics of Materials
  • Engineering(all)
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Structural Collapse and Vehicular Crash Simulation Using a Plastic Hinge Technique'. Together they form a unique fingerprint.

  • Cite this