Prediction of Instability Using the K<sup>R</sup> Curve Approach

SEDL / STP / STP896-EB / STP35314S

Prediction of Instability Using the K^R-Curve Approach

McCabe, DE
Senior engineer, Westinghouse Electric R&D, Pittsburgh, PA

Schwalbe, KH
Head, Fracture Mechanics Group, Research Center Geesthacht, Geesthacht,

Pages: 15 Published: Jan 1985

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Abstract

An elastic-plastic R-curve instability prediction method is reported. The method is prepared in a format such that the computational steps outlined can be used as a guide to make instability predictions. Three example problems are given.

Keywords:
R-curve, test procedure, instability, fracture mechanics, compliance, plastic zone, ASTM Standard Method E 561, elastic-plastic

Paper ID: STP35314S
Committee/Subcommittee: E08.08
DOI: 10.1520/STP35314S

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