复合材料科学与工程Issue(10)：53-64,12.DOI:10.19936/j.cnki.2096-8000.20241028.008
SMA铺设构型对贴补修理层合板的热振动特性研究
Research on the thermal vibration characteristics of SMA laying configuration on patch repair laminates
摘要
Abstract
Fiber reinforced materials made of shape memory alloys embedded in composite materials have the advantages of high strength and self-repair,which can significantly improve the rigidity and peel resistance of the repair structure.Based on the first-order shear deformation theory(FSDT)and Hamilton's principle,the constitu-tive equation and vibration control equation of SMA composites are derived.The single-sided repair laminate model of SMA patch embedded with multiple laying configurations was established by ABAQUS software,and the influence of SMA laying configuration on the vibration characteristics of repair glass fiber laminate at different temperatures was explored through numerical simulation and experimental verification.The results show that compared with the single-line type(D)and vertical cross type(C),the first three mode shapes of the diagonal cross type(X)SMA repair plate are closer to the traditional repair plate(Q0),and the overall stiffness and peel resistance of the repair structure are the best.The natural frequency drop rate of the repair board of the four configurations under the action of high temperature has the following relationship:Q0＞D6＞C6＞X6,that is,the SMA embedded with different laying methods can reduce the influence of temperature on the natural frequency to varying degrees,of which the X6-type has the lowest drop rate,up to 1.24％.The number of SMA laying has the following relationship with IQR value and natural frequency decline rate:6＞12＞24,with the increase of the number of SMA embedded in the board,the in-fluence of thermal effect on the natural frequency decreases,and the thermal stability and repair effect of X24 repair structure are the best.The high-order natural frequencies of SMA repair boards are more sensitive to temperature and more susceptible to temperature changes in their natural frequencies.关键词
十字平纹编织玻璃纤维复合材料/形状记忆合金/单面贴补修理/振动特性/热环境Key words
cross-weave fiberglass composite/shape memory alloy/single-sided patch repair/vibration char-acteristics/thermal environment分类
通用工业技术引用本文复制引用
崔开心,卢翔,谢昊航,刘兴龙..SMA铺设构型对贴补修理层合板的热振动特性研究[J].复合材料科学与工程,2024,(10):53-64,12.基金项目
国家自然科学基金(U2033209) （U2033209）
天津市研究生科研创新项目-一般专项(2022SKY158) （2022SKY158）
自然科学重点项目(XJ2023001601) （XJ2023001601）
