Accession Number : AD0782486

Title :   On Steady Quasi-Static Crack Growth.

Descriptive Note : Interim rept.,

Corporate Author : HARVARD UNIV CAMBRIDGE MASS DIV OF ENGINEERING AND APPLIED PHYSICS

Personal Author(s) : Hutchinson,John W.

Report Date : APR 1974

Pagination or Media Count : 31

Abstract : Aspects of crack growth in an elastic-plastic material under quasi-static, steady conditions are investigated for plane problems. A path-independent line integral is identified for the steady problem which generalizes the J-integral of deformation theory plasticity to incremental theories of plasticity. Implications of the integral for small scale yielding crack growth are discussed. A model study is made of the effect on the growth process of the residual plastic wake left behind the advancing crack. The influence of the wake on the stabilization of crack growth is discussed. (Author)

Descriptors :   *Fracture(Mechanics), *Crack propagation, Plastic properties

Subject Categories : Metallurgy and Metallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE