Delamination crack growth in unidirectional fiber-reinforced composites under static and cyclic loadingAn investigation of delamination crack growth in a unidirectional composite laminate under static and fatigue loading conditions is presented. An experimental program was conducted to study failure mechanisms and characterize the crack growth rate; analytical modeling based on microscopic observations was carried out using an advanced singular finite element method of the hybrid-stress model. Using a mixed-mode failure criterion, the delamination growth under a monotonically increasing load can be predicted; the rate of delamination crack propagation under fatigue loading is directly related to the amplitudes of cyclic opening and shearing mode stress intensity factors by a power law relationship.
Document ID
19800036989
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Wang, S. S. (Illinois, University Urbana, Ill., United States)