均質化法による織物複合材料の三次元マイクロ構造設計 : 第1報, 強度に及ぼす織物積層方向位置ずれの影響

摘要: The strength of woven fabric composite materials depends on their microstructural geometry. However, the conventional methods for mechanical analysis, which have been widely used to date, are insufficient because they cannot take into account three-dimensional microstructure. In this study, homogenization method is shown be effective determination material constants, microscopic stresses and strength. It has found that transverse stress in lamination direction plays an important role fracture both fiber bundle resin. Also, effect mismatched lay-up investigated. was predicted causes a reduction difference crack initiation These simulations provide new concept design materials.