Crack extension in unidirectional composite laminae

✍ Scribed by H. El Kadi; F. Ellyin

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 539 KB
• Volume: 51
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/0013-7944(94)00222-4

✦ Synopsis

The problem of predicting the crack extension behaviour of a centre-notched unidirectional graphite-epoxy coupon is investigated. Both the load required to cause initial crack growth and the direction of crack growth are of interest.

Comparison between the theoretical predictions and the experimental results indicates that the present criterion, based on the critical strain energy, accurately predicts the direction of crack growth as well as the load causing crack growth initiation for the test cases considered.