Residual strength of composite laminates with a centre crack under tension

Abstract

An empirical relationship between the failure stress and stress intensity factor at failure is examined for the estimation of residual strength of various types of laminates with different layup sequence and having centre cracks. The estimated fracture strengths for these laminates under tension are compared with existing experimental results. They are found to be in reasonably good agreement with each other.

Keywords:

• Residual strength
• composite laminates
• cracks
• failure assessment diagram