Some Observations on Fracture under Combined Loading

Abstract

Observations are made concerning comparative fracture behavior of cracked and uncracked specimens under combined loading conditions. A theory is proposed which provides a general fracture criterion for mixed mode crack extension and which unifies the treatment of elastic fracture problems in initially cracked and uncracked geometries. All observations are supported by experimental fracture results taken from the literature on polymethyl-methacrylate and glass.

Mixed-Mode Fracture of Graphite/Epoxy Composites.

“…Huber-Mises-Hencky yi el d functions and a modi fi ed version [7 ), and the strain energy density [ 8 ] . Recently , Wu [ 9,10] proposed the use of the polynomial failure cri terion to predict fracture of glass/epoxy laminates .…”