碳/碳编织复合材料连接结构的拉脱性能分析

doi:10.3901/JME.2023.18.196

机械工程学报 ›› 2023, Vol. 59 ›› Issue (18): 196-206.doi: 10.3901/JME.2023.18.196

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碳/碳编织复合材料连接结构的拉脱性能分析

唐玉玲¹, 闫福棣¹, 张峻霞¹, 周振功², 郭颖³, 姜美娇¹

1. 天津科技大学天津市轻工与食品工程机械装备集成设计与在线监控重点实验室天津 300222;
2. 哈尔滨工业大学复合材料与结构研究所哈尔滨 150001;
3. 哈尔滨理工大学建筑工程学院哈尔滨 150006

收稿日期:2022-12-28 修回日期:2023-03-16 出版日期:2023-09-20 发布日期:2023-12-07
通讯作者: 张峻霞(通信作者),女,1968年出生,博士,教授,博士研究生导师。主要研究方向为仿生结构设计及结构轻量化设计与性能分析。E-mail:zjx@tust.edu.cn
作者简介:唐玉玲,女,1981年出生,博士。主要研究方向为复合材料及其结构的力学性能分析,热防护结构的设计与分析。E-mail:tangyuling@tust.edu.cn
基金资助:
国家自然科学基金(11272105)、天津市轻工与食品工程机械装备集成设计与在线监控重点实验室开放基金(2019LIMFE04)资助项目。

Pull-through Performance of Carbon/Carbon Braided Composite Joints

TANG Yuling¹, YAN Fudi¹, ZHANG Junxia¹, ZHOU Zhengong², GUO Ying³, JIANG Meijiao¹

1. Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, Tianjin University of Science & Technology, Tianjin 300222;
2. Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150001;
3. School of Architecture and Civil Engineering, Harbin University of Science and Technology, Harbin 150006

Received:2022-12-28 Revised:2023-03-16 Online:2023-09-20 Published:2023-12-07

摘要/Abstract

摘要： 对碳/碳(C/C)编织复合材料沉头螺栓与凸头螺栓连接结构在面外载荷下的拉脱强度进行试验和数值研究。测试不同螺栓形式及沉头角度的C/C编织复合材料螺栓连接结构在面外载荷下的失效模式和拉脱性能。结果显示，螺栓形式对结构的拉脱性能有显著的影响，凸头螺栓的载荷位移曲线有明显的线性阶段，接近于脆性失效，沉头螺栓的载荷位移曲线为非线性，表现为双峰值，其更接近于塑性失效。采用ABAQUS建立了基于Hashin失效准则的连接结构非线性接触模型，有效预报了C/C编织复合材料连接结构的失效模式及载荷-位移曲线。得到C/C编织复合材料连接结构渐近损伤过程及失效机理，给出连接参数(螺栓形式、沉头角度和约束面积)对拉脱失效的影响机制。随着沉头螺栓角度的增加，结构的拉脱失效载荷先增加，后降低，在110°附近达到极值，约束区域尺寸变化导致凸头螺栓的失效模式由剪切失效转变为弯曲失效。

关键词: 碳/碳编织复合材料, 螺栓连接, 拉脱性能, 有限元分析, 渐进损伤

Abstract: Pull-through performance of the C/C composite joints are studied through experiments and numerical simulations. Failure process, mode, and pull-through strength are investigated experimentally for bolt forms and countersunk head angles. The results show that the bolt form has a significant effect on the pull-thought performance of the structure. The load-displacement curve of protruding head bolts has an obvious linear stage. The failure mode is close to brittle failure. The load-displacement curve of countersunk head bolts is nonlinear. A non-linear contact model, based on the Hashin failure criterion, is established using ABAQUS. The model is validated by comparing failure modes and load-displacement curve to experimental results. The progressive damage and failure mechanism of the joints are obtained, and the influence mechanism of parameters(bolt form, countersunk head angle and constraint area) on pull-thought failure is given. The results show that the pullout failure load of the structure increases first and then decreases as the increase of the countersunk angle, and the failure load reaches the peak near 110°. Failure mode changes from shear failure to bending failure due to increase of constraint area.

Key words: carbon/carbon composites, bolted joints, put-thought performance, finite element analysis, progressive damage

中图分类号:

TG156

唐玉玲, 闫福棣, 张峻霞, 周振功, 郭颖, 姜美娇. 碳/碳编织复合材料连接结构的拉脱性能分析[J]. 机械工程学报, 2023, 59(18): 196-206.

TANG Yuling, YAN Fudi, ZHANG Junxia, ZHOU Zhengong, GUO Ying, JIANG Meijiao. Pull-through Performance of Carbon/Carbon Braided Composite Joints[J]. Journal of Mechanical Engineering, 2023, 59(18): 196-206.

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碳/碳编织复合材料连接结构的拉脱性能分析

Pull-through Performance of Carbon/Carbon Braided Composite Joints

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