Influence of Small Scale Yielding on Dynamic Fracture.

Abstract

Dynamic fracture and crack-arrest responses of the well-discussed wedge-loaded rectangular, double cantilever beam (WL-RDCB) specimens machined from a 3.2 mm thick annealed polycarbonate sheet were studied by dynamic photoelasticity and dynamic finite element analysis. A small, but finite plastic yield zone surrounded the propagating crack which resulted in crack velocities, dynamic fracture toughness and crack arrest toughness lower than those observed previously in 6.4 mm thick polycarbonate fracture specimens. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1980
Accession Number
ADA086335

Entities

People

  • Albert S. Kobayashi
  • B. S.-j. Kang
  • M. Ramulu

Organizations

  • University of Washington

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • California
  • Cantilever Beams
  • Crack Propagation
  • Crack Tips
  • Cracks
  • Data Reduction
  • Engineering
  • Finite Element Analysis
  • J Integrals
  • Mechanical Engineering
  • Mechanics
  • Military Research
  • Plastic Properties
  • Stress Intensity Factors
  • Stresses
  • United States
  • Yield Strength

Readers

  • Materials Science (Mechanical Engineering).