3次元板構造体の高速亀裂伝播・停止現象を対象とした重合メッシュ法に基づくApplication phase解析手法の開発

抄録

In this study, a numerical simulation model that can accurately and rapidly reproduce high-speed crack propagation and arrest behavior in a three-dimensional plate structure was developed based on the s-method of finite element method. High-speed crack-arrest experiments were conducted on a specimen fabricated from acrylic resin (PMMA), and the failure criteria based on the dynamic stress intensity factor were identified through generation phase analysis using the developed model. The validity and effectiveness of the developed model were demonstrated by comparing the experimental results using PMMA with the predictions using the developed model.