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泡沫金属材料的孔径效应
引用本文:田杰,胡时胜,蒋家桥,黄西成.泡沫金属材料的孔径效应[J].爆炸与冲击,2004,24(4):347-351.
作者姓名:田杰  胡时胜  蒋家桥  黄西成
作者单位:1. 中国科学技术大学中国科学院材料力学行为和设计重点实验室,安徽,合肥,230027
2. 中国工程物理研究院结构力学研究所,四川,绵阳,621900
基金项目:国家基金委和中国工程物理研究院联合基金
摘    要:在分离式霍普金森压杆(SHPB)和MTS810材料试验机上分别对泡沫纯铝材料和铝硅合金泡沫材料进行了动态与准静态压缩实验研究。实验结果表明:孔径的大小对泡沫铝的弹性变形包括弹性模量没有影响,但对泡沫铝的屈服强度和塑性硬化模量有影响,且这种影响主要取决于泡沫铝基体材料的韧脆特性,泡沫铝的相对密度也会影响这种孔径效应。

关 键 词:材料力学  孔径效应  SHPB  泡沫铝  泡沫金属材料  孔径效应  aluminum  foams  mechanical  property  相对密度  特性  基体材料  硬化模量  塑性  强度  影响  弹性模量  弹性变形  泡沫铝  大小  结果  静态压缩实验  研究  动态  泡沫材料
文章编号:1001-1455(2004)04-0347-05
修稿时间:2003年7月9日

Cell-size effect on mechanical property of aluminum foams
TIAN Jie,HU Shi-sheng,JIANG Jia-qiao,HUANG Xi-chengials,University of Science and Technology of China,Hefei ,Anhui,China.Cell-size effect on mechanical property of aluminum foams[J].Explosion and Shock Waves,2004,24(4):347-351.
Authors:TIAN Jie  HU Shi-sheng  JIANG Jia-qiao  HUANG Xi-chengials  University of Science and Technology of China  Hefei  Anhui  China
Institution:TIAN Jie~1,HU Shi-sheng~1,JIANG Jia-qiao~2,HUANG Xi-cheng~2ials,University of Science and Technology of China,Hefei 230027,Anhui,China,2.Institute of Structural Mechanics,China Academy of Engineering Physics,Mianyang 621900,Sichuan,China)
Abstract:A variety of experiments on aluminum foam and aluminum-silicon foam are carried out under dynamic loading on SHPB and quasi-static loading on MTS 801 respectively. The experiment results prove: Cell-size has no effect on the elastic deform including elastic modulus of aluminum foam, but has an un-neglectable effect on the plastic modulus and plastic strength of aluminum foam. The effect lies on the toughness or brittleness characters of aluminum foam, the relative density of aluminum foam also has some effect.
Keywords:mechanics of explosion  cell-size effect  SHPB  aluminum foam
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