個別要素法によるぜい性材料ばりの衝撃破壊挙動の解析

概要

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When a static load is applied to a brittle material beam, the beam fractures at the fixed end. However, such a phenomenon does not necessarily occur in the case of dynamic load. In dynamic load the fracture behavior changes with the situation of the stress wave propagation, the material properties and the shape of beam. In this research, an impact fracture behavior of free end of cantilever beam made of plaster is analyzed using the Discrete element method (DEM). This method is able to analyze the discontinuous fracture behavior of the plaster beam. The analytical results are compared with the experimental results presented previously by the authors. From the results, the impact fracture mechanism of brittle material beam, that is the condition of the crack initiation and propagation, is considered.
一般社団法人日本機械学会の論文
2003-08-25