[1]杨福俊,王辉,杜晓磊,等.泡沫铝夹心板静态三点弯曲变形行为及力学性能[J].东南大学学报(自然科学版),2012,42(1):120-124.[doi:10.3969/j.issn.1001-0505.2012.01.023]
 Yang Fujun,Wang Hui,Du Xiaolei,et al.Deformation behavior and mechanical properties of aluminium foam sandwiches under static three-point bending[J].Journal of Southeast University (Natural Science Edition),2012,42(1):120-124.[doi:10.3969/j.issn.1001-0505.2012.01.023]
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泡沫铝夹心板静态三点弯曲变形行为及力学性能()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
42
期数:
2012年第1期
页码:
120-124
栏目:
材料科学与工程
出版日期:
2012-01-18

文章信息/Info

Title:
Deformation behavior and mechanical properties of aluminium foam sandwiches under static three-point bending
作者:
杨福俊1王辉23杜晓磊1何小元1
(1东南大学江苏省工程力学分析重点实验室,南京 210096)(2东南大学材料科学与工程学院,南京 211189)(3北京科技大学新金属材料国家重点实验室,北京 100083)
Author(s):
Yang Fujun1Wang Hui23Du Xiaolei1He Xiaoyuan1
(1Jiangsu Key Laboratory of Engineering Mechanics, Southeast University, Nanjing 210096, China)
(2School of Materials Science and Engineering, Southeast University, Nanjing 211189, China)
(3State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China)
关键词:
泡沫铝夹心开孔与闭孔泡沫铝三点弯曲表面变形行为能量吸能
Keywords:
aluminium foam sandwich open and closed-cell aluminium foams three-point bending surface deformation behavior energy absorption
分类号:
TG113
DOI:
10.3969/j.issn.1001-0505.2012.01.023
摘要:
采用焊接方法制备了泡沫铝夹心板,通过对制备出的泡沫铝夹心板进行三点弯曲实验,测量其整体的抗弯特性.应用数字图像相关方法计算了弯曲过程中试样表面的全场变形响应,结合对载荷-位移曲线的分析,讨论了2种不同孔结构夹心板的变形行为.结果表明:由于夹心材料结构上的不同,导致其破坏方式的不同; 以闭孔泡沫铝为夹心的夹心板弯曲吸能比夹心为开孔泡沫铝的多,而开孔泡沫铝夹心板的弯曲刚度则更高些,这对泡沫铝夹心板的设计及工程应用具有实际指导意义.
Abstract:
Static three-point bending tests were carried out in order to investigate the structural response of two different typologies of aluminium foam sandwich (AFS) panels prepared by open-and closed-cell aluminium foam core with fluxless soldered interfaces. Digital image correlation method was employed to evaluate the whole field deformation behavior of AFS side-surface. Based on image analysis and load-displacement curves, it was found that different collapse modes for samples with almost identical nominal dimensions, which depends on the own core cell structure of AFS panels. The experimental results show that open-cell AFS panels have higher bending strength than closed-cell AFS panels, and the later have higher capacity of energy absorption than the former ones. The research work provides a technological guidance to the practical design and application of the foam aluminum sandwich in the industry.

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备注/Memo

备注/Memo:
作者简介:杨福俊(1968—),男,博士,教授,博士生导师,yang-fj@seu.edu.cn.
基金项目:国家自然科学基金资助项目(10972055)、东南大学自然科学预研基金资助项目(KJ2009353).
引文格式: 杨福俊,王辉,杜晓磊,等.泡沫铝夹心板静态三点弯曲变形行为及力学性能[J].东南大学学报:自然科学版,2012,42(1):120-124.[doi:10.3969/j.issn.1001-0505.2012.01.023]
更新日期/Last Update: 2012-01-20