Delamination growth in curved composite beam at elevated temperatures

Delamination failure commonly appears in composite structures, especially those with curved regions, where a relatively high through-thickness stress is generally created. This study examined the delamination growth behavior of curved composite laminates at elevated temperatures. A four-point bending test was performed at room temperature, 100°C, and 125°C, where 125°C exceeds the epoxy glass transition temperature. We found that the failure...