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。
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.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2008年第12期2099-2103,共5页
Rare Metal Materials and Engineering
基金
北京市教委凝聚态物理重点学科共建项目(XK100270454)
北师大分析测试基金
关键词
泡沫金属
多孔金属
泡沫材料
多孔材料
多向载荷
foamed metal
porous metal
foamed material
porous material
multiaxial loading
