Abstract
Crack initiation and growth behaviors in two polymers—PMMA, a thermoplastic and Homalite-100, a thermosetting polyester—are examined in this paper. The shadow-optical method of caustics is used in conjunction with a high speed video camera to record the variation of the stress intensity factor and the crack position with time. Slow crack growth, transition to unstable growth and stick-slip crack growth behaviors were observed in both material. The observed crack growth behaviors are discussed in terms of the mechanisms that govern the crack growth processes.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
