应机械结构强度与振动国家重点实验室邀请，日本东京工业大学副校长、工学部部长、航天航空学院名誉教授岸本喜久雄（Kikuo Kishimoto)，东京理科大学高桥昭如（Akiyuki Takahashi）教授来访我院并作学术报告。

时 间：2019年5月20号（星期一）9:00-11:00

地 点：航天航空学院教一楼第三会议室

报告1

Topic: Multi-Material Structures and Interfacial Mechanics

Abstract: Modern machines and structures are composed of various types of materials to satisfy the design requirements. In order to ensure the safety and reliability, it is important to understand the interface strength of the multi-material structures. Multilayer structures composed of thin polymer films are also widely used. In this presentation, various approaches of interfacial mechanics are briefly reviewed and several testing methods developed for electrical-package and adhesive films are presented including adhesion test, peering test, probe tack test and nano-indentation test. Fatigue strength test of steel and aluminum alloy joint is also introduced.

报告2

Topic: A fatigue crack growth simulation system considering the plasticity induced crack closure effect

Abstract: By combining the s-version finite element method (SFEM) and the elastic-plastic analysis of crack closure behavior, a new fatigue crack growth simulation system considering the plasticity induced crack closure effects is developed. The crack closure effects are classically considered in the numerical fatigue crack growth simulations by introducing the crack opening level parameter. In this study, the crack opening level parameter is directly calculated using the results of the elastic-plastic analysis of crack closure behavior. Then, the fatigue crack growth behavior is simulated using the SFEM with the Paris law modified by the crack opening level parameter. The potential of the proposed system is demonstrated with some simple numerical examples and the numerical results are compared to experimental results.