227 異種物質内包クローズドセル構造金属材料の圧縮による破壊特性(OS 多機能・複合機能化への材料協調設計)

概要

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Powder particles of polystyrene coated with nickel-phosphorus alloy layers using electroless plating were pressed into pellets by isostatic pressing and sintered in vacuum at high temperature. A metallic closed cellular material was then fabricated. The compressive tests of this metallic closed cellular material containing organic materials were performed. The obtained results show that this material has the different stress-strain curves among the specimens that have different thickness of the cell walls. Also these results show this closed cellular material has a long plateau region in the curves and high energy absorption. The cracks occur in the direction parallel to the loading axis in the plateau region and the broken cell walls were observed on the fracture surface. It should be thought that the fracture of cell walls causes this high energy absorption.
一般社団法人日本機械学会の論文
2001-11-02