location: Current position: DUT_haohai >> Scientific Research >> Paper Publications

COMPRESSIVE CAPACITY AND FRACTURE MECHANISM OF ALUMINUM FOAM

Hits:

Indexed by:会议论文

Date of Publication:2011-02-27

Included Journals:EI、CPCI-S、Scopus

Volume:3

Page Number:101-107

Key Words:Aluminum Foam; Compressive Capability; Facture Character

Abstract: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.

Pre One:时效制度对Al-7.1Zn-1.1Mg-1.6Cu-0.14Zr合金断裂行为的影响

Next One:枝晶尖端生长速度对凝固组织数值模拟的影响研究——Ivantsov函数近似方式的确定