SMA增强含损伤智能结构的失效研究  

FAILURE OF SHAPE MEMORY ALLOY REINFORCED SMART STRUCTURE WITH DAMAGES

作　　者：胡自力[1] 熊克[1] 王鑫伟[1] 

机构地区：[1]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

出　　处：《复合材料学报》2005年第1期120-125,共6页Acta Materiae Compositae Sinica

基　　金：航空科学基金项目(01G52041);国家自然科学基金项目(10072026;50135030)

摘　　要：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。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 and 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 study on integrity of SMA smart structures.

关 键 词：智能结构 损伤 SMA 失效 细观分析 变分原理 

分 类 号：TB330.1[一般工业技术—材料科学与工程] TB381