| 缺陷对蜂窝铝压缩变形机制及性能的影响 |
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| 引用本文： | 廖明顺,左孝青,潘晓亮,欧阳德来.缺陷对蜂窝铝压缩变形机制及性能的影响[J].材料导报,2005,19(12):129-131. |
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| 作者姓名： | 廖明顺 左孝青 潘晓亮 欧阳德来 |
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| 作者单位： | 昆明理工大学材料与冶金工程学院,昆明,650093;昆明理工大学材料与冶金工程学院,昆明,650093;昆明理工大学材料与冶金工程学院,昆明,650093;昆明理工大学材料与冶金工程学院,昆明,650093 |
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| 基金项目： | 中国科学院资助项目，云南省自然科学基金，云南省重点实验室基金 |
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| 摘 要： | 缺陷普遍存在于蜂窝材料中,对蜂窝材料的压缩变形机制和性能均有不同程度的影响.利用有限元法模拟研究了蜂窝铝的压缩过程,分析了制备蜂窝铝的过程中可能存在的缺陷及其数量,如断边、填充、大孔(SBS)、小孔(BSB)缺陷,研究了缺陷对其变形机制、屈服强度、平台应变和能量吸收特性的影响.研究结果表明:断边和大孔缺陷对蜂窝铝屈服强度的影响较为显著;而填充和小孔缺陷对平台应变和能量吸收的影响较为显著.
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| 关 键 词： | 蜂窝铝 有限元模拟 缺陷 压缩性能 |
Effect of Defects on Compression Properties and Deformation Behaviour of Aluminum Honeycomb |
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| LIAO Mingshun,ZUO Xiaoqing,PAN Xiaoliang,OUYANG Delai.Effect of Defects on Compression Properties and Deformation Behaviour of Aluminum Honeycomb[J].Materials Review,2005,19(12):129-131. |
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| Authors: | LIAO Mingshun ZUO Xiaoqing PAN Xiaoliang OUYANG Delai |
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| Affiliation: | Institute of Material and Metellugy Engneering,Kunming University of Science and Technology,Kunming 650093 |
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| Abstract: | Defects widely exist in honeycomb and the effects of defects on compression properties and deform- ation behaviour of honeycomb are different.The compressive process of aluminum honeycomb are studied by using fi nite element simulation,the effect of defects and its number on deformation behaviour.yield strength,strain platform and energy-absorption are analyzed,Those defects,such as broken edge,fill in cellular,big cellular(SBS)and small cel- lular(BSB),probably exist when aluminum honeycomb is prepared.The resuhs show that the effect of broken edge and big cellular(SBS)on the yield strength of aluminum honeycomb are more prominent,and the effect of fill in cellular and small cellular(BSB)on the strain platform and energy-absorption of aluminum honeycomb are more prominent. |
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| Keywords: | aluminum honeycomb finite element simulation defect compression property |
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