Experiment of the new test method for interlaminar fracture toughness
Carbon fiber reinforced plastic (CFRP) is often used as a laminate with thin layers stacked together, and therefore, cracks are frequently generated between these layers due to low interlaminar strength properties. Interlaminar delamination severely reduces compressive strength, which is becoming a bottleneck for weight reduction in aircraft design. Therefore, quantitative evaluation of onset and progress of interlaminar delamination is extremely important in practical use. We have developed and verified a new test method for the interlaminar fracture toughness.
Related publications
- Shigeki Yashiro, Toshihide Agata, Akinori Yoshimura. A new approach for evaluating crack growth resistance curve of mode II delamination by doubly end-notched tension tests. Advanced Composite Materials, Vol. 27(2), pp. 119-133 (2018).