基于FBG传感碳纤维复合材料π型胶接接头损伤监测

玻璃钢/复合材料 ›› 2018, Vol. 0 ›› Issue (7): 19-25.

基于FBG传感碳纤维复合材料π型胶接接头损伤监测

江峰, 胡业发, 宋春生

武汉理工大学机电工程学院,武汉 430070

收稿日期:2017-12-22 出版日期:2018-07-20 发布日期:2018-07-20
作者简介:江峰(1993-),男,硕士,主要从事碳纤维复合材料方面的研究,1308179575@qq.com。
基金资助:
国家自然科学基金(U1537103);中央高校基本科研业务费专项资金资助(2016III031)

DAMAGE MONITORING OF CARBON FIBER REINFORCED PLASTIC π ADHESIVE JOINT BASED ON FIBER BRAGG GRATING

JIANG Feng, HU Ye-fa, SONG Chun-sheng

School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan 430070, China

Received:2017-12-22 Online:2018-07-20 Published:2018-07-20

摘要/Abstract

摘要： 针对碳纤维复合材料π型胶接接头在拉伸载荷下的损伤,建立了碳纤维复合材料π型胶接接头的有限元模型,预测了接头失效部位,并分析了其损伤演化和应力分布的映射关系。然后基于传递矩阵法计算了损伤部位光纤布拉格光栅(FBG)的反射光谱,并通过实验验证了反射光谱计算方法的有效性。最后利用遗传算法对应力分布进行重构,得到了损伤部位的应力分布形式,为工程上碳纤维复合材料π型胶接接头的损伤监测提供了新的方法。

关键词: 碳纤维复合材料, 光纤布拉格光栅, 损伤监测, 遗传算法

Abstract: Aiming at the damage monitoring of carbon fiber reinforced plastic π adhesive joint under tensile load, a finite element model of carbon fiber reinforced plastic π adhesive joint is established, and the failure location of the joint is predicted. The mapping relationship between damage evolution and stress distribution is also analyzed. Then, the reflection spectrum of the fiber Bragg grating at the damage location is calculated based on the transfer matrix method, and the effectiveness of the reflection spectrum calculation is verified by the experiment. Finally, the stress distribution is reconstructed by genetic algorithm, and the stress distribution form of the damaged part is obtained, which provides a new method for the damage monitoring of carbon fiber reinforced plastic π adhesive joint in engineering applications.

Key words: carbon fiber reinforced plastic, fiber bragg grating, damage monitoring, genetic algorithm

中图分类号:

TB332

江峰, 胡业发, 宋春生. 基于FBG传感碳纤维复合材料π型胶接接头损伤监测[J]. 玻璃钢/复合材料, 2018, 0(7): 19-25.

JIANG Feng,HU Ye-fa,SONG Chun-sheng. DAMAGE MONITORING OF CARBON FIBER REINFORCED PLASTIC π ADHESIVE JOINT BASED ON FIBER BRAGG GRATING[J]. Fiber Reinforced Plastics/Composites, 2018, 0(7): 19-25.

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