SEDL / STP / STP1207-EB / STP13730S

The Crack Tip Opening Displacement and J Integral Under Strain Control and Fully Plastic Conditions Estimated by the Engineering Treatment Model for Plane Stress Tension

Schwalbe, K-H
Director of Materials Research Institute, GKSS-Forschungszentrum Geesthacht, Geesthacht,

Pages: 16    Published: Jan 1994

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Abstract

The Engineering Treatment Model (ETM) relates the crack tip opening displacement (CTOD) and the J integral with the applied load or applied strain using a geometry independent, master-curve-type, equation. In the present paper, CTOD and J were examined as a function of the applied strain by means of comparing ETM predictions with earlier experimental and numerical results. A comparison was also made with a theoretical solution by Shih and Hutchinson. It was concluded that the ETM provides useful engineering approximations.