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为了对软硬交替多层表面膜在磨粒作用下的应力应变响应、膜层界面剥离和裂纹的产生及扩展的影响等有一个定量和全面的了解，从而为多层表面膜的结构设计提供理论基础，采用大变形弹塑性有限元法对高速钢基体上的ＴｉＮ／Ｔｉ／ＴｉＮ／Ｔｉ…多层膜在法向压痕作用下的力学行为进行了模拟和分析。为了研究膜层数和膜厚的影响，对从单层到１６层的不同膜层体系进行了计算。通过对膜层的变形、最大应力随膜层数的变化、界面切应力分布和表面张应力分布等的分析得出了这些参数的分布及其随载荷和膜层数的变化规律。这些结果将为多层膜的结构优化设计提供定量的依据。
In order to provide a quantitative and comprehensive understanding of the stress-strain response of the hard and soft alternating multi-layer surface film under the action of abrasive particles, the delamination of the film interface and the influence of the crack growth and expansion, and the like, the structure design of the multilayer surface film is provided Based on the theoretical basis, the mechanical behavior of TiN / Ti / TiN / Ti ... multilayer film on high speed steel substrate under normal indentation was simulated and analyzed by using large deformation elasto-plastic finite element method. In order to study the influence of the number of layers and the thickness of the film, different layer systems from 16 to 16 layers were calculated. Through the analysis of the deformation, the maximum stress with the change of the number of layers, the interfacial shear stress distribution and the surface tensile stress distribution, the distribution of these parameters and their variation with the load and the number of layers are obtained. These results will provide a quantitative basis for the structural optimization design of multilayer films.