Abstract
Woven fabric composites have superior mechanical properties to the conventional unidirectional fiber reinforced composites. Their liminates are often used to main parts of various structures. The mechanical behaviors of laminates are affected by microscopic stacking configuration such as stacking phase. However, their mechanism has not been completely revealed due to the geometric complexity of fabric architecture. In this paper, the effect of mismatch of stacking phase has been investigated numerically by a three-dimensional finite element analytical code based on damage mechanics. As a result, it has been recognized that stacking phase dominates the occurrence of transverse cracks in weft yarns and the damage mode in warp yarns.