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| 泡沫夹层结构复合材料准静态压痕实验 | |
| 引用本文： | 蔡建丽,余欢,王云英,闫丽,安学锋.泡沫夹层结构复合材料准静态压痕实验[J].宇航材料工艺,2011,41(3). |
| 作者姓名： | 蔡建丽 余欢 王云英 闫丽 安学锋 |
| 作者单位： | 1. 南昌航空大学,南昌,330063;北京航空材料研究院先进复合材料重点实验室,北京,100095 2. 南昌航空大学,南昌,330063 3. 北京航空材料研究院先进复合材料重点实验室,北京,100095 |
| 基金项目： | 北京航空材料研究院先进复合材料重点实验室武器预研基金 |
| 摘 要： | 研究了两种芯材高度的泡沫夹层结构复合材料在准静态压痕力下的损伤过程与形式,通过控制压头位移得到位移与接触力的关系曲线以及不同位移下的损伤形貌,比较了两种芯材的损伤过程.结果表明:损伤过程为泡沫塌陷、泡沫芯材出现裂纹、夹层板上蒙皮分层和芯材与下蒙皮脱粘;损伤形式为:厚芯材时裂纹与泡沫厚度方向成±45.,薄芯材时裂纹与泡沫厚度方向成90°. |
| 关 键 词： | 准静态压痕 损伤过程 损伤形式 C扫描 泡沫夹层结构复合材料 |
Foam Core Sandwich Structure Composites Subjected to Quasi Static Indentation |
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| Cai Jianli,Yu Huan,Wang Yunying,Yan Li,An Xuefeng.Foam Core Sandwich Structure Composites Subjected to Quasi Static Indentation[J].Aerospace Materials & Technology,2011,41(3). | |
| Authors: | Cai Jianli Yu Huan Wang Yunying Yan Li An Xuefeng |
| Institution: | Cai Jianli1,2 Yu Huan1 Wang Yunying1 Yan Li2 An Xuefeng 2(1 Nanchang Hangkong University,Nanchang 330063)(2 National Key Laboratory of Advanced Composites,Beijing Institute of Aeronautic Materials,Beijing 100095) |
| Abstract: | The damage processes and forms of two different heights of foam-core sandwich structure composites subjected to quasi-static indentation were studied.The curves of contact force and displacement as well as the damage morphologies of different displacements were obtained by controlling the displacements.The differences of damage processes between thick foam-core materials and thin foam-core materials were also compared.The result shows that the damage process consists of foam-core collapsing,foam-core cracki... |
| Keywords: | Quasi-static indentation Damage process Damage form C-scan Foam-core sandwich composites |
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