Abstract
A two-dimensional, boundary-collocation stress analysis was used to analyze various round compact specimens. The influence of the round external boundary and of pin-loaded holes on stress-intensity factors and crack-opening displacements was determined as a function of crack-length-to-specimen-width ratios. A wide-range equation for the stress-intensity factors, like that developed for the “standard” rectangular compact specimen, was developed. Equations for crack-surface displacements and load-point displacements were also developed.
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