二维码（扫一下试试看！） | | 非平衡刚度胶铆混合连接接头特性及失效机制 | | Characteristics and Failure Mechanism of Unbalanced Bonded-Riveted Hybrid Joints | | 投稿时间：2020-03-10 | | DOI：10.15918/j.tbit1001-0645.2000.041 | | 中文关键词:碳纤维增强环氧树脂复合材料(CFRP)胶-铆混合连接接头有限元分析工艺顺序失效 | | English Keywords:carbon fiber reinforced polymer (CFRP)bonded-riveted hybrid jointsfinite element analysisprocess sequencefailure | | 基金项目:国家重点研发计划项目（2016YFB0101606）；国家自然科学基金资助项目（51675044） | | | 摘要点击次数:633 | | 全文下载次数:308 | | 中文摘要: | | 为解决汽车轻量化中混合材料车身的异质材料连接问题，研究了碳纤维增强环氧树脂复合材料（carbon fiber reinforced polymer，CFRP）与铝合金非平衡刚度四钉压铆-胶接混合连接接头力学性能及失效机制.基于重导入和预定义场技术，建立了CFRP/Al非平衡刚度混合连接接头的非线性有限元分析模型，据此对混合连接压铆、回弹及拉伸载荷渐进失效机制进行仿真；对混合连接与单一连接力学性能和失效形式进行了对比分析.结果表明，所提出的建模方法能够同时考虑铆接成型过程和混合连接工艺顺序对混合接头连接特性的影响，混合连接最大载荷及能量吸收预测误差分别为2.3%、5.2%，具有较高的性能预测精度；铆接在失效初期对胶接具有加强作用，失效形式为先胶层失效后铝板拉伸失效，仿真与试验结果较为一致. | | English Summary: | | To solve the problem of multi-material connection in lightweight automotive bodies, the mechanical properties and failure mechanism of carbon fiber reinforced polymer (CFRP) and aluminum alloy unbalanced four-rivets bonded-riveted hybrid joints were studied. Based on re-import and predefined field, a nonlinear finite element analysis model of CFRP/Al unbalanced hybrid joint was established. The process of riveting, springback and progressive failure mechanism under tensile load of the hybrid joint were simulated. And comparative analysis of mechanical properties and failure modes between bonded joint, riveted joint and hybrid joint was carried out. It is shown that the modeling method proposed can take into consideration the impact of the riveting process and the process sequence on the characteristics of the hybrid joint simultaneously. The error value of the peak load and energy absorption predicted by the model is of 2.3% and 5.2% respectively with high prediction accuracy. The riveting can provide a strengthening effect on the bonding at the early stage of failure. The failure takes place usually in the form, the adhesive layer fails firstly and after that the aluminum plate fails. The simulation and test results are consistent relatively, verifying the correctness of the modeling method proposed. | | 查看全文查看/发表评论下载PDF阅读器 | |
胡宇辉,王旭,胡家铭,龚建伟,王克,李桂鹏,梅程.越野环境下无人驾驶车辆技术研究综述[J].北京理工大学学报（自然科学版）,2021,41(11):1137~1144.HUYuhui,WANGXu,HUJiaming,GONGJianwei,WANGKe,LIGuipeng,MEICheng.AnO ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21江维,王杰,陈伟,余联庆,李红军,吴功平.半结构环境中电力作业机器人机械手鲁棒轨迹跟踪控制[J].北京理工大学学报（自然科学版）,2019,39(4):391~398.JIANGWei,WANGJie,CHENWei,YULian-qing,LIHong-jun,WUGong-ping.Manipu ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21江维,周志远,陈伟,余联庆,李红军,吴功平.高压电缆移动作业机器人机械手双闭环自主定位控制[J].北京理工大学学报（自然科学版）,2019,39(6):589~596.JIANGWei,ZHOUZhi-yuan,CHENWei,YULian-qing,LIHong-jun,WUGong-Ping.M ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21严保康,周凤星,徐波.基于GST的变速机械故障信号稀疏特征提取方法[J].北京理工大学学报（自然科学版）,2019,39(6):603~608.YANBao-kang,ZHOUFeng-xing,XUBo.SparseFeatureExtractionforVariableSpeedMachiner ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21郭智蔷,吴维,刘洋,李博,苑士华.车辆最佳动力性泛函表达及数值解法[J].北京理工大学学报（自然科学版）,2019,39(7):688~693.GUOZhi-qiang,WUWei,LIUYang,LIBo,YUANShi-hua.ObjectiveFunctionalandNumericalSol ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21成英,高利,陈雪梅,赵亚男.有人与无人驾驶车辆交叉口驾驶博弈模型[J].北京理工大学学报（自然科学版）,2019,39(9):938~943.CHENGYing,GAOLi,CHENXue-mei,ZHAOYa-nan.ADrivingGameModelforMannedandUnmannedVeh ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21刘凯,王威,龚建伟,陈慧岩,陈舒平.越野地形下智能车辆的动力学建模与轨迹跟踪[J].北京理工大学学报（自然科学版）,2019,39(9):933~937.LIUKai,WANGWei,GONGJian-wei,CHENHui-yan,CHENShu-ping.DynamicModelingandTr ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21吴鹏,孟祥远,王子晔,高建伟.基于神经动力学的冗余机械臂恒定转速比算法[J].北京理工大学学报（自然科学版）,2019,39(10):1081~1085.WUPeng,MENGXiang-yuan,WANGZi-ye,GAOJian-wei.ConstantRotationRatioofRedund ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21张海鸣,龚建伟,陈建松,王羽纯.非结构化环境下无人驾驶车辆跟驰方法[J].北京理工大学学报（自然科学版）,2019,39(11):1126~1132.ZHANGHai-ming,GONGJian-wei,CHENJian-song,WANGYu-chun.StudyofAutonomousVehic ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21.北京理工大学学报2019年总目次（第39卷）[J].北京理工大学学报（自然科学版）,2019,39(12):1321~1338..[J].TransactionsofBeijingInstituteofTechnology,2019,39(12):1321-1338.二维码（扫一下试试看！）北京理 ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21
| |
