摘要
本文将具有一定塑性应变的形状记忆合金 (SMA)纤维埋设在复合材料板中 ,利用其形状记忆功能 (SME)改善复合材料板的低速冲击响应性能。研究中 ,应用有限元法对SMA杂交复合材料板的低速冲击响应进行了分析 ,其中 ,SMA中产生的恢复应力通过实验得出的应力 温度关系确定 ,冲击接触力通过修正的Hertzian接触定律求得 ;
In this paper,the shape memory alloy(SMA) fibers,which is pre-tensioned,are embedded in the composite plate,and the shape memory effect(SME) of SMA is used to improve the low velocity impact performance of composite plate.The low velocity impact responses are analyzed by using the finite element method,the recovery tensile stress is evaluated by employing experimental stress-temperature curves,and the impact contact force is determined by using modified Hertzian contact law.The numerical results show that the SMA can effectively improve the low velocity impact response performance of composite plate.
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2003年第6期785-788,共4页
Journal of Materials Science and Engineering
基金
教育部科学技术研究重点资助项目 (0 0 0 85)
