DEMによるぜい性材料板の衝撃貫通破壊現象の解析と評価

概要

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It is important to know the dynamic fracture behavior for the safety design of the brittle material board. However, to analyze the dynamic fracture behavior of the brittle material board is difficult because it is discontinuous fracture behavior. In this research, the impact penetration fracture behavior when the impact body collides with the center of the brittle material board is analyzed by using the Distinct Element Method (DEM). DEM is suitable for the analysis of the fracture behavior from the continuous body to discontinuous body. In addition to the analysis, an experiment of the impact penetration fracture is performed by using the glass plate. The experimental results are compared with the analytical results. From the result, it has been understood that the penetration speed and the loss energy increase as the impact velocity of the impact body increases. Moreover, the influences of material constants as the young's modulus, tensile and compressive strength are clarified.
一般社団法人日本機械学会の論文
2004-10-25