[1]王展光,褚旭明,何德坪,等.强度、吸能与韧性兼容的新型球形孔泡沫纯铝[J].东南大学学报(自然科学版),2007,37(6):985-989.[doi:10.3969/j.issn.1001-0505.2007.06.009]
 Wang Zhanguang,Chu Xuming,He Deping,et al.New type of spherical pores Al foam possessing strength, energy absorption and toughness[J].Journal of Southeast University (Natural Science Edition),2007,37(6):985-989.[doi:10.3969/j.issn.1001-0505.2007.06.009]
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强度、吸能与韧性兼容的新型球形孔泡沫纯铝()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
37
期数:
2007年第6期
页码:
985-989
栏目:
材料科学与工程
出版日期:
2007-11-20

文章信息/Info

Title:
New type of spherical pores Al foam possessing strength, energy absorption and toughness
作者:
王展光13 褚旭明2 何德坪2 单建1
1 东南大学土木工程学院, 南京 210096; 2 东南大学材料科学与工程学院, 南京 211189; 3 南昌航空大学土建学院, 南昌 330036
Author(s):
Wang Zhanguang13 Chu Xuming2 He Deping2 Shan Jian1
1 School of Civil Engineering, Southeast University,Nanjing 210096,China
2 School of Material Science and Engineering, Southeast University,Nanjing 211189,China
3 School of Civil Engineering,Nanchang Hangkong University, Nanchang 330063, China
关键词:
球形孔泡沫纯铝 压缩屈服强度 致密化起始点 吸能能力
Keywords:
spherical pore Al foam compressive yield strength densification starting point energy absorption capability
分类号:
TG146
DOI:
10.3969/j.issn.1001-0505.2007.06.009
摘要:
在球形孔泡沫纯铝压缩、拉伸应力应变曲线基础上,研究了致密化起始点、吸能能力、压缩强度和拉伸性能.结果表明:球形孔泡沫纯铝与球形孔泡沫铝合金的压缩应力应变曲线相似,分为3个部分:线弹性阶段、平台阶段和密实阶段; 提出了根据压缩曲线的斜率图,确定球形孔泡沫纯铝的致密化起始点的新方法; 球形孔泡沫纯铝相对于球形孔泡沫铝合金是一种吸能能力更强的、韧性性能良好的新材料.采用Gibson-Ashby的模型来分析球形孔泡沫纯铝的压缩屈服强度和抗拉强度,吻合效果良好.
Abstract:
Based on the compression and tension curves of spherical pores Al foam, the densification starting point, energy absorption, compressive yield strength, and tension properties are investigated. The compressive stress-strain curve of cellular Al alloy consists of three distinct regions, i.e., the linear elasticity region, the plastic collapse region or brittle crushing region, and the densification region. On the basis of slope plots of compressive curves,the way to determine the densification starting point of high density metal foam is presented. Spherical pores Al foam is a cellular metal material of high plastic performance, therefore its energy absorption capability is bigger than that of spherical pores Al alloy foam. Its compressive yield stress and tensile strength are in good agreement with Gibson-Ashby model’s expectation.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目: 国家重点基础研究发展计划(973计划)资助项目(2006CB601201)、国家自然科学基金重点资助项目(50231010,50471031,50081002,19982001).
作者简介: 王展光(1977—),男,博士生; 何德坪(联系人),男,教授,博士生导师,dphe@seu.edu.cn.
更新日期/Last Update: 2007-11-20