【摘要】 该文基于薄膜撕裂实验测量和反分析来确定铝膜与陶瓷基体之间界面的力学参数(指界面粘结功和分离强度),薄膜是通过一层环氧树脂胶粘结到基体的。薄膜厚度20μm―250μm,撕裂实验中撕裂角度取90°、135°和180°三种。嵌入粘聚力单元(cohesive zone elements)的有限元模型用于模拟撕裂过程,反分析中有限元计算结果作为一个神经网络的训练数据。将撕裂实验结果输入训练后的网络,可得界面粘结功和分离强度。更多还原

【Abstract】 The interfacial mechanical parameters for the Al film/ceramic system at an epoxy interface layer between film and ceramic are determined by peel test measurements and inverse analysis. In the present investigation, Al films with a series of thicknesses between 20 and 250 microns and three peel angles of 90, 135 and 180 degrees are considered. A finite element model (FEM) with the cohesive zone elements is used to simulate the peel test. The FEM results are taken as the training data of a neural network in the inverse analysis. The interfacial cohesive energy and the separation strength can be determined based on the inverse analysis and peel experimental results.更多还原