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Constant-probability crack growth curves

โœ Scribed by H. Ghonem

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
964 KB
Volume
30
Category
Article
ISSN
0013-7944

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โœฆ Synopsis

This paper details a stochastic, time-inhomogeneous model that serves as a theoretical basis for the prediction of crack growth and its variability under constant-amplitude loading. Crack evolution is described as a set of constant probability curves, each of whose points possess equal probability of advancing from one position to another forward position. This probability is governed by a transition intensity parameter for which two mathematical interpretations are examined. A simplified crack growth rate equation, employing one of the definitions, is derived and applied to A17075T6 material for different loading conditions. Results of this application are compared with those experimentally obtained.

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