Damage characterization in thin-ply composite laminates under out-of-plane transverse loadings

作者：Yokozeki Tomohiro^*; Kuroda Akiko; Yoshimura Akinori; Ogasawara Toshio; Aoki Takahira

来源：Composite Structures, 2010, 93(1): 49-57.

DOI：10.1016/j.compstruct.2010.06.016

• Laminates
• Transverse loading
• Delamination
• Fiber failure
• Thin-ply prepreg

Composite laminates with thin-ply layers are expected to exhibit superior damage resistance to the standard composite laminates. This study investigated the damage characteristics of carbon fiber/toughened epoxy thin-ply laminates subjected to transverse loadings. Quasi-isotropic laminates were prepared using both standard prepregs and thin-ply prepregs in order to examine the effect of ply thickness on the damage accumulation processes. Clear difference on damage accumulation process between standard laminates and thin-ply laminates was identified; fiber fractures were susceptible to formation in thin-ply laminates. Finally, the reason of the difference on damage process was investigated using finite element analyses, and it was clarified that the accumulated delamination position has a significant effect on the fiber fractures during the indentation.

• 出版日期2010-12