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泡沫材料在多向拉伸载荷作用下的力学模型
引用本文:刘培生.泡沫材料在多向拉伸载荷作用下的力学模型[J].稀有金属材料与工程,2008,37(12).
作者姓名:刘培生
作者单位:北京师范大学,射线束技术与材料改性教育部重点实验室,北京,100875
基金项目:北京市教委凝聚态物理重点学科共建项目,北师大分析测试基金 
摘    要:以各向同性的三维网状高孔率泡沫金属为研究对象,根据其简化结构模型,推导得出该类材料在多向拉伸破坏时3个名义主应力与孔率四者之间的数理关系。通过推演得出的有关关系式,还可进一步得出泡沫金属在多向受力状态下使用时的强度设计判据。

关 键 词:泡沫金属  多孔金属  泡沫材料  多孔材料  多向载荷

Mechanical Model for Open-Cell Foamed Materials under Multiaxial Tension
Liu Peisheng.Mechanical Model for Open-Cell Foamed Materials under Multiaxial Tension[J].Rare Metal Materials and Engineering,2008,37(12).
Authors:Liu Peisheng
Affiliation:Liu Peisheng (Key Laboratory of Beam Technology , Material Modification of Ministry of Education,Beijing Normal University,Beijing 100875,China)
Abstract:The mechanical property was investigated for isotropic three-dimensional foamed metals under multiaxial tension. From the simplified structural model, the mathematical relationship between three minimal main stresses and porosity has been derived for this sort of materials at failure under multiaxial tension. Through the relevant expression from the deduction, the criterion of strength design can be further obtained for foamed metals under multiaxial loading.
Keywords:foamed metal  porous metal  foamed material  porous material  multiaxial loading  
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