GENERATION AND VALIDATION OF CRACK GROWTH RESISTANCE CURVE FROM DCB SPECIMENS: AN EXPERIMENTAL STUDY

摘要

This article examines fracture toughness and interlaminar failure load of double cantilever beam (DCB) specimens made of glass/epoxy of three different lay-ups. The present model requires the applied load-displacement history and crack extension to generate the crack growth resistance curve (R-curve). From the generated R-curve, the interface failure load was estimated for the specimens and good agreement with the experimentally recorded value was found.