Besed on a four-phase model of composites and theory of elasticity,effects of multiple phases with fiber, matrix and interphase on the stresses developed due to hygrothermal loadings are evaluated.

• 基于复合 材料的四相模型，本论文运用弹性力学的基础理论计算并评价了纤维 /基体界面在多相体系中湿热作用所引起的内应力的效应。