Numerical Modeling of Dynamic Propagation in Finite Bodies, by Moving Singular Elements. Part I. Formulation.

Abstract

An efficient numerical (finite element) method is presented for the dynamic analysis of rapidly propagating cracks in finite bodies, of arbitrary shape, wherein linear-elastic material behavior and two-dimensional conditions prevail. Procedures to embed analytical asymptotic solutions for singularities in stresses/strains near the propagating crack-tip, to account for the spatial movement of these singularities along with the crack-tip, and to directly compute the dynamic stress-intensity factor, are presented.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1980
Accession Number
ADA087395

Entities

People

  • S. N. Atluri
  • T. Nishioka

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Boundaries
  • Civil Engineering
  • Crack Propagation
  • Crack Tips
  • Cracks
  • Elastic Materials
  • Equations
  • Finite Element Analysis
  • Fracture (Mechanics)
  • Geometry
  • Intensity
  • Materials
  • Mechanics
  • Stress Intensity Factors
  • Stresses
  • Transient Response Analysis
  • Two Dimensional

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Materials Science (Mechanical Engineering).