Transactions of Materials and Heat Treatment

Title：Three-point bending behavior of sandwich beams in aluminum foam

Authors： Li Zehua Cao Xiaoqing Shen Lulu Liu Wenzheng

Unit： Taiyuan University of Technology

KeyWords： aluminum foam sandwich beam three-point bending

ClassificationCode：TG146; TG113

year,vol(issue):pagenumber：2014,39(12):124-128

Abstract：

The bending behaviors of sandwich beams in aluminum foam with glued aluminum panel (AFS) were investigated by static three-point bending test. The results show that the load-displacement curves of all studied AFS consist of three regions: a linear region, a rapid-drop region of load and a plateau region. The load-displacement curve of AFS is similar to that of aluminum foam and its value is significantly higher than the sum of values for aluminum foam and two times of panel. The bending strength of sandwich beam increases with the increase of the panel thickness and decreases with the increase of the foam core thickness. When the panel thickness increases from 1 mm to 3 mm, the cross-sectional area is increased by 15%, and the ultimate load is increased by 149%. The main failure modes of AFS are initial collapse and shear failure of foam core, as well as the delamination of glued interface at large bending loads.

Funds：

国家自然科学基金资助项目（90205018）；山西省自然科学基金资助项目（2010011033-1）

李泽华（1989-），女，硕士研究生;通讯作者：曹晓卿（1966-），女，博士，教授

Reference：

[1]Gibson L J, Ashby M F, Cellular Solids. Structure and Properties[M]. Cambridge: Cambridge University Press, 1997.

[2] Banhart J. Manufacture, characterization and application of cellular metals and metal Foams[J].Progress in Materials Science, 2001, 46(6): 559-632.

[3]范爱琴，张艳芳，张勇明. 泡沫铝夹芯复合板的三点弯曲试验[J]．物理测试，2012，30(4)：27-31．

Fan A Q， Zhang Y F，Zhang Y M. Three-point bending of brazed open-cell aluminum foam sandwich[J]. Physics Examination and Testing, 2012，30(4)：27-31．

[4]Crupi V, Montanini R. Aluminium foam sandwiches collapse modes under static and dynamic three-point bending[J]. International Journal of Impact Engineering, 2007, 34(3): 509-521.

[5]Contorno D, Filice L, Fratini L. Forming of aluminum foam sandwich panels:numerical simulations and experimental tests[J]. Journal of Materials Processing Technology, 2006, 177(1/2/3): 364-367.

[6]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．

Yang F J，Wang H，Du X L，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．

[7]Bratus A S, Posvyanskii V P. The optimum shape of a bending beam[J]. Journal of Applied Mathematics and Mechanics, 2001, 64(6): 993-1004.

[8]尚金堂，何德坪，杜晓磊. 泡沫铝层合梁的三点弯曲变形[J]．材料研究学报，2003，17(1)：31-38．

Shang J T，He D P，Du X L. Deformation of sandwich beams with Al foam cores in three-Point bending[J]. Chinese of Materials Research, 2003，17(1)：31-38．

[9]孙振忠，陈海彬. 泡沫铝三明治板材U 型弯曲成形变压边力控制研究[J]．锻压技术，2010，35(4)：44-47．

Sun Z Z，Chen H B. Study on variable blank holderforce control in foam aluminum sandwich panel U-bending[J]. Forging & Stamping Technology, 2010，35(4)：44-47．

[10]Chen C, Harte A M, Fleck N A. The plastic collapse of sandwich beams with a metallic foam core[J]. Internationa1 Journal of Mechanical Sciences, 2001, 43(6):1483-1506.

[11]Mccormack T M, Miller R, Kelser O, et al. Failure of sandwich beams with metallic foam cores[J]. International Journal of Solids and Structures, 2001,(38): 4901-4920.

[12]Yu Jilin, Wang Erheng, Li Jianrong, et al. Static and low-velocity impact behavior of sandwich beams with closed-cell aluminum-foam core in three-point bending[J]. International Journal of Impact Engineering, 2008,(35):885-894.

[13]Zu Guoyin, Song Binna, Zhong Zhaoyang, et al. Static three-point bending behavior of aluminum foam sandwich[J]. Journal of Alloys and Compounds, 2012, (540): 275-278.

[14]Degischer H P, Kriszt B．多孔泡沫金属[M]．左孝青，周芸译．北京：化学工业出版社，2005．

Degischer H P, Kriszt B. Handbook of Cellular Metals[M]. Translated by: Zuo Q，Zhou Y．Beijing：Chemical Industry Press，2005．

Service：

【This site has not yet opened Download Service】【Add Favorite】