SEDL / STP / STP601-EB / STP28664S

Side-Cracked Plates Subject to Combined Direct and Bending Forces

Srawley, JE
Head, Fracture Mechanics Section, and materials engineer, National Aeronautics and Space Administration, Lewis Research Center, Cleveland, Ohio

Gross, B
Head, Fracture Mechanics Section, and materials engineer, National Aeronautics and Space Administration, Lewis Research Center, Cleveland, Ohio

Pages: 21    Published: Jan 1976

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Abstract

The opening mode stress intensity factor and the associated crack mouth displacement are comprehensively treated using planar boundary collocation results supplemented by end-point values from the literature. Data are expressed in terms of dimensionless coefficients of convenient form which are functions of two dimensionless parameters, the relative crack length, and a load combination parameter which uniquely characterizes all possible combinations of tension or compression with bending or counterbending. Accurate interpolation expressions are provided which cover the entire range of both parameters. Application is limited to specimens with ratios of effective half-height to width not less than unity.