多孔材料的力学模型和粘弹性性能研究  

Mechanical model and visco-elastic properties research for porous materials

作　　者：龚兰云[1] 高永毅[1] 张厚安[2] 

机构地区：[1]湖南科技大学先进材料制备与应用研究所,湖南湘潭411201 [2]厦门理工学院机械工程系,福建厦门361024

出　　处：《湖南科技大学学报（自然科学版）》2010年第1期34-37,共4页Journal of Hunan University of Science And Technology：Natural Science Edition

基　　金：国家自然科学基金资助项目(50775071);湖南省科技计划项目(2008FJ3037);湖南省教育厅重点项目(06A018)

摘　　要：建立了多孔铜-铝-氧化铝复合材料力学模型.利用粘弹性理论和有限元分析方法,得到了多孔铜-铝-氧化铝复合材料的切变模量本构方程;得出了铜-铝-氧化铝复合多孔材料的压力与位移的关系、受力面的支反力与加载时间的关系是非线性关系,多孔铜-铝-氧化铝复合材料是粘弹性材料的结论;获得了铜-铝-氧化铝复合多孔材料的弹性模量为533.89MPa的结果.Porous Cu-Al-Al2O3 composite mechanics model was established and porous Cu-Al-Al2O3 composite shear modulus constitutive equation was obtained by means of Visco-elastic theory and finite element analysis method. The relationship between stress and displacement of porous Cu-Al-Al2O3 composite was attained, and the relationship between support reaction at force surface and load time is non-linear relationship, and porous Cu-Al-Al2O3 composite is viscoelastic material. Access to a result of Cu-Al-Al2O3 composite elastic modulus of porous materials for 533.89 MPa.

关 键 词：多孔材料力学模型 粘弹性 本构方程 数值分析 

分 类 号：TB301[一般工业技术—材料科学与工程]