郝海

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:材料科学与工程学院

学科:材料加工工程. 材料加工工程

办公地点:大连理工大学铸造中心308

联系方式:0411-84709458/13804098729

电子邮箱:haohai@dlut.edu.cn

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COMPRESSIVE CAPACITY AND FRACTURE MECHANISM OF ALUMINUM FOAM

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论文类型:会议论文

发表时间:2011-02-27

收录刊物:EI、CPCI-S、Scopus

卷号:3

页面范围:101-107

关键字:Aluminum Foam; Compressive Capability; Facture Character

摘要:The compressive test of aluminum foam samples manufactured by the melt foaming method were carried out and the compressive curves of stress-strain were discussed in this paper. The behavior of deformation by compression and the energy absorption of the aluminum foam were studied. The test results showed three regions during the deformation: linear elastic deformation region, collapse region and densification region. As the porosity increases, the capacity of elastic strain resistance reduced significantly, and the specimen with a porosity of around 76% has the highest energy absorption capacity. The aluminum foam failed by a mixture of malleable tearing and brittle fracture, moreover the slit develops along the grain border.