Title

DETERMINING STRESS INTENSITY FACTORS FOR RUNNING CRACKS.

Document Type

Conference Proceeding

Date of Original Version

1-1-1984

Abstract

Analyses of running cracks in large structures have been performed using dynamic finite-element computer codes. The stress field representation needed to completely describe the stress state around static cracks in fracture specimens of finite dimensions has been studied extensively. This paper develops the counterpart stress field equations for plane elastodynamic crack problems which, when combined with the multiple-point, least-squares method allow dynamic values of K and additional stress field parameters to be evaluated from photoelastic data with a high degree of accuracy.

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