通过测量泡沫铝在动态和准静态压缩条件下的应力-应变曲线, 研究了泡沫铝的准静态和动态压缩行为以及不同应变条件下的吸能性,并对其应变率效应进行了分析.结果表明,在高应变速率和准静态压缩下,泡沫铝的σ-ε曲线均表现出弹性变形段、平缓段和密实段三阶段特征;泡沫铝的压缩性能具有明显的应变速率敏感性,随应变速率的提高,流动应力上升,吸能性升高.
参考文献
| [1] | Andrews E;Sanders W;Gibson L J .Compressive and tensile behavior of aluminum foams[J].Materials Science and Engineering,1999,A270:113-124. |
| [2] | Fusheng H;Zhengang Z.The mechanical behavior of foamed aluminum[J].Journal of Materials Science,1999(34):291-298. |
| [3] | 程和法,黄笑梅,许玲.泡沫铝镁合金的压缩与吸能性的研究[J].兵器材料科学与工程,2002(06):12-14. |
| [4] | T. G. Nieh;K. Higashi;J. Wadsworth .Effect of cell morphology on the compressive properties of open-cell aluminum foams[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2000(1/2):105-110. |
| [5] | GibsonLJ;Ashby M F.Cellular Solids:Structure and Properties[M].UK:Cambridge University Press,1997:205. |
| [6] | Deshpande V S;Fleck N A.High strain rate compressive behavior of aluminum alloy foams[J].International Journal of Impact Engineering,2000(24):277-298. |
| [7] | A. Paul;U. Ramamurty .Strain rate sensitivity of a closed-cell aluminum foam[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2000(1/2):1-7. |
| [8] | Kathryn A Dannemann;James Lankford Jr .High strain rate compression of closed-cell aluminum foams[J].Materials Science and Engineering,2000,A293:157-164. |
| [9] | 刘剑飞;王正道;胡时胜.低阻抗多孔介质材料的SHPB实验技术[J].实验力学,1999(02):218-223. |
| [10] | Lu TJ.;Ong JM. .Characterization of close-celled cellular aluminum alloys[J].Journal of Materials Science,2001(11):2773-2786. |
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