Derivation of effective stress intensity factors from measured crack faces displacements - Archive ouverte HAL
Journal Articles Engineering Fracture Mechanics Year : 2009

Derivation of effective stress intensity factors from measured crack faces displacements

Abstract

When a crack is subjected to cyclic shear-mode loading, crack faces interference wedge the crack open and reduce the effective D K II . The methods proposed in the literature to prevent it or to derive the effective D K I and D K II are discussed. It is shown that when crack tip plas- ticity becomes important it tends to make displacements larger than those predicted by LEFM and to ''hide" friction effects. Finite element simulations combining friction and plas- ticity can separate these two effects, but the analysis of force-sliding displacement loops derived from displacement field measurements based on image correlation is a more straightforward and efficient method

Dates and versions

hal-00870873 , version 1 (08-10-2013)

Identifiers

Cite

Véronique Doquet, Graciela Bertolino. Derivation of effective stress intensity factors from measured crack faces displacements. Engineering Fracture Mechanics, 2009, 76 (11), pp.1574-1588. ⟨10.1016/j.engfracmech.2009.02.017⟩. ⟨hal-00870873⟩
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