Abstract: According to the concept from mechanics of fracture and stacking principle, Applying the method of finite element,in this paper getting the distribution law of stress of interface between concrete and stickup layer,avoiding the process of crack producing and developping which can not be simulated by FEA, providing a new way to find out the distribution law of stress of interface between concrete and stickup layer

Key words: mechanics of fracture, stacking principle, stress of interface, new methond

摘要： 笔者借鉴断裂力学的概念和方法，利用叠加原理和有限元方法得到复合结构在开裂瞬间和发展过程中界面 应力分布规律，避开了有限元程序难以模拟裂纹从萌生发展这一过程中，为界面应力分析提供了一种新方法

关键词: 断裂力学, 叠加原理, 界面应力, 新方法