Accession Number : AD0786701

Title :   Stress Intensity Factor of a Corner Crack.

Descriptive Note : Interim technical rept. no. 3,

Corporate Author : WASHINGTON UNIV SEATTLE DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Kobayashi,Albert S.

Report Date : AUG 1974

Pagination or Media Count : 30

Abstract : The alternating method for elliptical flaw analysis has been extended to solve corner flaw (and surface flaw) problems by prescribing appropriate fictitious pressure on the elliptical crack surface which protrudes into the free space. This procedure accelerates the numerical convergence of the iteration process and extends the applicability of the third order polynomial of pressure distribution. The improved alternating procedure is then used to determine stress intensity factors in corner flaws with aspect ratios of a/b = 0.98, 0.4 and 0.2 and subjected to uniform or linearly varying pressure distributions. (Author)

Descriptors :   *Defects(Materials), *Cracks, *Stresses, Stress concentration, Shear stresses, Fracture(Mechanics), Pressure, Iterations, Numerical analysis

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE