
Accession Number : AD0749901
Title : The Effect of a Circular Inclusion on the Stresses Around Two Collinear Finite Line Cracks in a Plate Under Tension.
Descriptive Note : Interim rept.,
Corporate Author : NEW MEXICO UNIV ALBUQUERQUE BUREAU OF ENGINEERING RESEARCH
Personal Author(s) : Hsu,Y. C. ; Shivakumar,V.
Report Date : SEP 1972
Pagination or Media Count : 37
Abstract : The investigation aims at the fracture stability (toughness) of the flat large elastic cracked plate in the presence of an elastic circular inclusion. To this end, the cracktip stress intensity factor for plane problems, K, in the field theory of elastic fracture, is proposed as a criterion for the fracture stability. Here K is defined as the magnitude of stresses in the vicinity of the end of the crack and determines the onset of rapid fracture in the elastic theory of GriffithIrwin. Of interest is K in a flat large elastic plate with two collinear finite cracks under uniform stresses at infinity, containing an elastic circular inclusion. The analysis is based on the twodimensional theory of elasticity and by use of the Muskhelishvilli complex variable approach. Numerical calculations were carried out for the variation of K with the configuration and elastic properties of the plate and the inclusion, for the case of simple tension in the y direction. (Author)
Descriptors : (*FRACTURE(MECHANICS), *PANELS), CRACKS, STRESSES, DEFECTS(MATERIALS), ELASTIC PROPERTIES, NUMERICAL ANALYSIS
Subject Categories : Structural Engineering and Building Technology
Mechanics
Distribution Statement : APPROVED FOR PUBLIC RELEASE