Numerical Simulation on Mounted Bolt Failures in Vehicle Subframe

doi:10.3969/j.issn.1004-132X.2022.19.014

Abstract

Abstract: A high-strength mounted bolt（10.9， M14）was taken as the research object， 3 bolt strength tests were designed for different loading status. The fracture strain under different stresses triaxiality was calibrated using finite element simulation and parameter reverse methods and CrachFEM shear failure model was constructed for bolt material. The shear fracture strength was studied for variable diameters of mounted bolt during tests and simulation for subframe， and it provides the stable simulation method for mounted bolt design for subframe to satisfy the crash requirements. The correlation work also demonstrates that CrachFEM model may better predict the fracture failure behavior of high-strength mounted bolts.

Key words: subframe, mounted bolt, crash failure, numerical simulation, simulation accuracy

摘要： 针对10.9级M14高强螺栓碰撞断裂，设计了三种不同受力状态的螺栓强度试验，采用有限元逆向参数方法获得不同应力三轴度下的断裂极限应变，建立了螺栓材料的CrachFEM剪切断裂模型。基于副车架总成试验的数值模拟研究了变直径螺栓的抗剪切强度，为考虑碰撞要求的设计提供了可靠的模拟方法，同时也表明CrachFEM模型能够很好地预测高强螺栓的断裂失效行为。

关键词: 副车架, 安装螺栓, 碰撞断裂, 数值模拟, 仿真精度

CLC Number:

LI Wei, ZHENG Hao, LIU Yanmei, FAN Song. Numerical Simulation on Mounted Bolt Failures in Vehicle Subframe [J]. China Mechanical Engineering, 2022, 33(19): 2388-2393.

李伟, 郑颢, 刘彦梅, 范松. 汽车副车架安装螺栓碰撞断裂的数值模拟研究[J]. 中国机械工程, 2022, 33(19): 2388-2393.

References

［1］胡琦，赵晓宾. 可脱落式前副车架在正面碰撞中的应用［J］. 内燃机与配件， 2020（17）：65-68.
HU Qi， ZHAO Xiaobin. Application of Detachable Front Subframe in Frontal Collision［J］. Internal Combustion Engines & Parts， 2020（17）：65-68.
［2］张迎军，涂金刚，张林波，等. 可脱落式前副车架结构仿真与试验［J］. 计算机辅助工程， 2017， 26（4）：32-38， 50.
ZHANG Yingjun， TU Jingang， ZHANG Linbo， et al. Structural Simulation and Test of Detachable Front Subframe［J］. Computer Aided Engineering， 2017， 26（4）：32-38， 50.
［3］王月，肖海涛，杜汉斌，等. 汽车前副车架脱落设计［J］. 汽车工程学报， 2016， 6（5）：369-375.
WANG Yue， XIAO Haitao， DU Hanbin， et al. Falling off Design of Automobile Front Subframe［J］. Journal of Automotive Engineering， 2016， 6（5）：369-375.
［4］何平，刘光复，谷叶水，等. 基于三维精确建模法的螺栓有限元分析［J］. 中国机械工程， 2012， 23（16）：1991-1996.
HE Ping， LIU Guangfu， GU Yeshui， et al. Finite Element Analysis of Bolts Based on Three-dimensional Accurate Modeling Method［J］. China Mechanical Engineering， 2012， 23（16）：1991-1996.
［5］高学敏，米保卫，冯程辉，等. 分级破碎机用螺栓剪切仿真分析与试验研究［J］. 煤矿机械， 2021， 42（8）：69-73.
GAO Xuemin， MI Baowei， FENG Chenghui， et al. Simulation Analysis and Experimental Study of Bolt Shearing for Classifier Crusher［J］. Coal Mine Machinery， 2021， 42（8）：69-73.
［6］贺李平，任雪梅. 螺栓联接的有限元建模方法研究［J］. 北京理工大学学报， 2020， 40（12）：1275-1281.
HE Liping， REN Xuemei. Research on Finite Element Modeling Method of Bolted Connection［J］. Journal of Beijing Institute of Technology， 2020， 40（12）：1275-1281.
［7］郑颢，欧阳俊，王玉超，等. 面向小偏置碰的轮毂断裂模拟研究［J］. 中国机械工程， 2021， 32（13）：1571-1576， 1583.
ZHENG Hao， OU Yangjun， WANG Yuchao， et al. Research on Wheel Fracture Simulation for Smalloffsetcollision［J］. China Mechanical Engineering， 2021， 32（13）：1571-1576， 1583.
［8］邓云飞，张永，张伟岐，等. 断裂准则对TC4钛合金板抗卵形头弹冲击的影响［J］. 中国机械工程， 2019， 30（19）：2378-2384.
DENG Yunfei， ZHANG Yong， ZHANG Weiqi， et al. The Influence of Fracture Criterion on the Resistance of TC4 Titanium Alloy Plate to the Impact of Oval Head Projectile［J］. China Mechanical Engineering， 2019， 30（19）：2378-2384.
［9］周梦成，冯飞，胡建华，等. AZ31B镁合金断裂应变与应力三轴度的关系研究［J］. 中国机械工程， 2015， 26（5）：694-698.
ZHOU Mengcheng， FENG Fei， HU Jianhua， et al. Research on the Relationship between Fracture Strain and Stress Triaxiality of AZ31B Magnesium Alloy［J］. China Mechanical Engineering， 2015， 26（5）：694-698.
［10］吴长鹏，谢斌，潘锋，等. 汽车动力总成悬置的碰撞失效模拟研究［J］. 汽车工程， 2019， 41（1）：36-41.
WU Changpeng， XIE Bin， PAN Feng， et al. Researchon Crash Failure Simulation of Automobile Powertrain Suspension［J］. Automotive Engineering， 2019， 41（1）：36-41.

[1]	TUN Fu-Chao, TUN Bai-Hu, ZHANG Xiu-Hua. Numerical Simulation of Heat Transfer Performance of Paraffin Thermal-Sensitive Valve  [J]. J4, 201016, 21(16): 1921-1926.
[2]	LI Yanle, PAN Zhongtao, QI Xiaoxia, CUI Weiqiang, CHEN Jian, LI Fangyi. Effect of Heat Treatment on Temperature and Stress Distribution during Laser Cladding of 316L Steels [J]. China Mechanical Engineering, 2024, 35(04): 666-677.
[3]	PENG Wenfei, ZHANG Cheng, LIN Longfei, HUANG Minghui, YU Feng. Modeling and Prediction of Central Damages in Cross Wedge Rolling Based on Continuous Damage Mechanics [J]. China Mechanical Engineering, 2024, 35(04): 711-720,751.
[4]	LI Kunhang, ZHANG Siqi, WU Wei, HU Mingzhuo, SUN Yaling, XIONG Xin, HUANG Hong. Multi-field Coupling Simulation and Analysis for Resistance Spot Welding of Three-layer Dissimilar Unequal-thickness Steels [J]. China Mechanical Engineering, 2023, 34(24): 2996-3003.
[5]	LUO Wenze, CHENG Huimei, LIU Hongyan, WANG Yifeng, YE Yanhong, DENG Dean. Numerical Simulation of Residual Stress and Welding Deformation for High Strength Steel Q960E Butt-welded Joints [J]. China Mechanical Engineering, 2023, 34(17): 2095-2105,2141.
[6]	XU Xiang, ZHANG Yilun, MEI Zheng, LI Jian, WANG Dan, MU Liansong. Numerical Simulation and Experimental Investigation of Flow Fields in Vehicle Climatic Chambers [J]. China Mechanical Engineering, 2023, 34(17): 2115-2123.
[7]	ZHU Yulong, ZHAO Yingsong, FANG Yang, CHEN Hongen, CHEN Zhenmao, . Rotating Eddy Current Testing for Inspection of Cracks at Hole Edge [J]. China Mechanical Engineering, 2023, 34(08): 883-891.
[8]	QIN Deng, DAI Zhiyuan, ZHOU Ning, LI Tian. Effects of Pantograph Subsidence on Its Aerodynamic and Acoustic Behaviors [J]. China Mechanical Engineering, 2022, 33(20): 2509-2519.
[9]	HU Futai, . Cracking Suppression and Lateral Bending Broadening Strategy of Fan-shaped Thin-wall Ribs during Extrusion [J]. China Mechanical Engineering, 2022, 33(14): 1734-1740.
[10]	MA Yi, CHEN Yutao, MENG Xiangkai, ZHAO Wenjing, PENG Xudong, . Transient Start-up Dynamics Model and Sealing Performance of Single Metal Seals in Cone Bits [J]. China Mechanical Engineering, 2022, 33(07): 777-785.
[11]	XU Mingsan, ZHOU Chunhui, ZHANG Zheng, ZENG Shoujin, . Temperature Distribution of Powder-gas-optical Coupling temperature field in Laser Cladding Processes [J]. China Mechanical Engineering, 2022, 33(01): 70-77.
[12]	PAN Chengyi, TONG Yuanqi, CAO Guanqun, ZHAO Yanling. Research on Friction and Wear Characteristics and Simulation of Microstructures Surface Unfolding Wheels [J]. China Mechanical Engineering, 2021, 32(22): 2689-2696.
[13]	ZHU Qian, YOU Dongdong, ZHU Quanli, . Dynamic Fit of Injection Mechanisms for Squeeze Casting Machines Based on Friction Model#br# [J]. China Mechanical Engineering, 2021, 32(12): 1405-1413.
[14]	YIN Hongchao, LIU Xiao, ZHAI Zhende, MU Lin. Numerical Simulation of Abrasive Flow Machining in Multi-angle Elbows [J]. China Mechanical Engineering, 2021, 32(11): 1299-1306.
[15]	GUO Wei, SUN Hongming, XU Gaofei, LI Guangwei, ZHOU Yue, WANG Minjian, . Improvements for Landing Impact Characteristics and Concentrated Stress Structures of Full Ocean Depth Landing Vehicles [J]. China Mechanical Engineering, 2021, 32(07): 867-874.