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论文类型：会议论文

发表时间：2012-03-27

收录刊物：EI、CPCI-S、Scopus

卷号：472-475

页面范围：2256-2259

关键字：Composite; Delamination; Critical drilling force; Cohesive zone model

摘要：The theoretical analysis and numerical study focused on the delamination onset of composites in drilling are presented. An analytical model considering the form of loads distribution is built. The formulas based on the fracture mechanics theory are given for predicting the critical drilling force of delamination onset. A finite element model is used to simulate the process of interfacial crack growth between layers. The interface elements are employed to account for delamination based on cohesive zone model. Some numerical results are given for verifying the validity of the distribution loading model and discussing the delamination onset and growth in drilling composites.