以泡沫铝为夹芯,长条薄铝板为面板制备泡沫铝层合梁,对泡沫铝层合梁的三点弯曲变形进行了研究.结果表明:泡沫铝层合梁的三点弯曲变形过程与泡沫铝的相似,层合梁的载荷曲线远远高于泡沫铝和面板的载荷曲线之和,显示出良好的层合效果;泡沫铝层合梁和泡沫铝承受载荷能力随着孔隙率的增大而逐渐减小;且同一孔隙率下泡沫铝层合梁的极限载荷点出现得比泡沫铝极恨载荷点迟,极限载荷值约为后者的4～5倍;较厚面板和良好的孔结构可以提高泡沫铝层合梁载荷曲线,载荷分别增加70%和80%左右.泡沫铝层合梁在保持泡沫铝轻质同时,大大提高了其载荷极限,在工程应用中有着良好的应用前景.
参考文献
| [1] | Gibson L J;Ashby M F.Cellular Solids:Structure and Properties[M].OXFORD:PERGAMON PRESS,1997:145-148. |
| [2] | Prakash O;Sang H;Embury J D .Structure and properties of Al-Sic foam[J].Materials Science and Engineering A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,1995,A99(03):195-203. |
| [3] | Feng Y.;Zheng HW.;Zhu ZG.;Zu FQ. .The microstructure and electrical conductivity of aluminum alloy foams[J].Materials Chemistry and Physics,2003(1):196-201. |
| [4] | 吴铿;潜伟;储少军;林怡娴 .制备泡沫铝时增粘过程的基础研究[J].中国有色金属学报,1998,8(09):80-85. |
| [5] | 息志臣;陈浩然 .复合材料层合梁理论[J].复合材料学报,1994,11(02):1-6. |
| [6] | 凤仪,郑海务,朱震刚,陶宁.闭孔泡沫铝的电磁屏蔽性能[J].中国有色金属学报,2004(01):33-36. |
| [7] | 王松林,凤仪,徐屹,张学斌,沈剑.SiCP增强泡沫铝基复合材料的制备工艺研究[J].金属功能材料,2005(06):22-26. |
| [8] | 尚金堂,何德坪.泡沫铝层合梁的三点弯曲变形[J].材料研究学报,2003(01):31-38. |
| [9] | 曾苏民.我国铝加工业发展趋势[J].中国有色金属学报,2004(z1):179-181. |
| [10] | Bratus A S;Posvyanskii V P .The optimum shape of a bending beams[J].J AppL Maths Mechs,2000,64(06):993-1004. |
| [11] | Andrews E;Sanders W;Gibson L J .Compressive and tensile behavior of aluminum foams[J].Materials Science and Engineering A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,1999,A270(02):113-124. |
| [12] | 球形孔泡沫铝合金三明治梁的三点弯曲变形[J].材料研究学报,2005(04):361-368. |
| [13] | FENG Yi;ZHU Zhen-gang;ZU Fang-qiou;HU Shi-sheng PAN Yi .Strain rate effects on the compressive property and the energy-absorbing capacity of aluminum alloy foams[J].Materials Characterization,2001,47:417-422. |
| [14] | 张立勇,薛国宪,程和法,许玲.通孔泡沫铝合金的动态压缩力学性能研究[J].有色金属,2004(04):21-24. |
| [15] | 左孝青;周芸.多孔泡沫金属[M].北京:化学工业出版社,2005:310-314. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%