SEDL / STP / STP590-EB / STP33942S

A Study of Plane Stress Fracture in the Large-Scale Plastic Yielding Regime

Tardiff, GE
Project leader, Chemistry and Materials Science Department and technical associate, Lawrence Livermore Laboratory, University of California, Livermore, Calif.

Kuhn, BA
Project leader, Chemistry and Materials Science Department and technical associate, Lawrence Livermore Laboratory, University of California, Livermore, Calif.

Heldt, LA
Professor of Metallurgical Engineering, Michigan Technological University, Houghton, Mich.

Pages: 13    Published: Jan 1976

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Abstract

Three independent methods for measuring plane stress fracture resistance in the large-scale plastic yielding regime were tested and were found to give equivalent results. The three methods were the J-integral technique, a method based on the increase in compliance that accompanies the development of a plastic zone, and a method based on the direct measurement of the plastic work that must be done to cause fracture.