A Photoelastic Study of the Dynamic Fracture Behavior of Homalite 100.

摘要

This report describes an experimental investigation of the dynamic behavior of cracks propagation in Homalite 100, a brittle thermosetting polymeric material. Dynamic photoelastic isochromatic fringe patterns associated with cracks propagating in center-pin-loaded,eccentric-pin-loaded and crack-line-loaded SEN specimens were recorded with a high speed multiple spark camera. Data was obtained from 11tests over a range of crack velocities from arrest to the terminal velocity of 15,000in/sec.