Abstract
This study describes a temperature dependence of transverse cracking in cross-ply CFRP laminates. A temperature-dependent transverse strength of the unidirectional composite is measured in order to discuss the temperature-dependent transverse crack occurring. The temperature dependence of transverse cracking is correlated with the temperature dependences of 90°layer strength and thermal residual stress in the cross-ply laminate under elevated temperature. The stacking sequence of the cross-ply laminates is also varied as a parameter. Whether the transverse crack occurs at relatively low load or high load at elevated temperature is then predicted considering the relationship between the temperature-dependent 90°layer strength and thermal residual stress.
