ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 3

Evaluation of Plane-Stress Fracture Testing Methods

Pearson, HS
Specialist EngineerMember of ASTM, Lockheed-Georgia Company, Marietta, GA

Abstract

ASTM Recommended Practice for R-Curve Determination (E 561) allows the use of either center cracked or compact specimens for determination of R-curves and K_c. A round-robin program to establish a Precision and Accuracy statement for ASTM E 561 was recently conducted on compact specimens. This paper presents R-curves and K_c data for two materials as determined from both specimen types. A discussion of the results is included.

Keywords:
fracture, fracture testing, toughness, toughness testing, R-curves, stress intensity, crack growth resistance, plane stress, fracture toughness

Paper ID: JTE11265J
DOI: 10.1520/JTE11265J
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