| SMA 增强含损伤智能结构的失效研究 |
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| 引用本文： | 胡自力,熊克,王鑫伟. SMA 增强含损伤智能结构的失效研究[J]. 复合材料学报, 2005, 22(1): 120-125 |
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| 作者姓名： | 胡自力 熊克 王鑫伟 |
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| 作者单位： | 南京航空航天大学,智能材料与结构航空科技重点实验室,南京,210016 |
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| 基金项目： | 航空科学基金项目(01G52041)，国家自然科学基金项目(10072026，50135030) |
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| 摘 要： | 从细观角度出发, 运用变分原理着重对形状记忆合金(Shape Memory Alloy, SMA) 增强含损伤智能结构的热、力学行为进行了分析, 给出了含损伤典型单元体的细观位移场、应力应变场的数学描述, 建立了SMA增强智能结构界面的失效判据, 并通过算例对失效判据进行了直观的几何描述。本文的结果为进一步研究智能结构的完整性提供了相应的理论支持。
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| 关 键 词： | 智能结构 损伤 SMA 失效 细观分析 变分原理 |
| 文章编号： | 1000-3851(2005)01-0120-06 |
| 收稿时间： | 2004-03-29 |
| 修稿时间： | 2004-07-25 |
FAILURE OF SHAPE MEMORY ALLOY REINFORCEDSMART STRUCTURE WITHDAMAGES |
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| HU Zili,Xiong Ke,WANG Xinwei. FAILURE OF SHAPE MEMORY ALLOY REINFORCEDSMART STRUCTURE WITHDAMAGES[J]. Acta Materiae Compositae Sinica, 2005, 22(1): 120-125 |
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| Authors: | HU Zili Xiong Ke WANG Xinwei |
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| Affiliation: | The Aeronautical Science Key Laboratory for Smart Materials and Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | The thermo-mechanical behaviors of shape memory alloy (SMA) fiber reinforced smart structure with damages were analyzed through variational principle. Mathematical expressions for meso-displacement field, stress-strain field of typical element with damages were presented, and a failure criterion for interface failure between SMA fibers and matrix was established. The failure criterion was geometrically characterized with an example. The results may provide a theoretical foundation for further studying on integrity of SMA smart structures. |
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| Keywords: | smart structures damages SMA failure meso-mechanical analyses variational principle |
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