低碳钢点焊结构的力学参数分析
Mechanic parameters analysis of spot welded low carbon steel structure
-
摘要: 以低碳钢为母材的点焊结构为研究对象，分别使用调试引伸计、拉伸试验和ANSYS的数值仿真三种方法，研究点焊结构的变形和应力状态，得出角度变形与载荷之间的关系，仿真分析点焊结构分焊核、塑性环和母材三部分的力学模型的合理性. 采用点焊结构力学模型分析仿真结果. 结果表明，得出角度变形量随载荷之间的关系，过程中调整塑性环的屈服极限和塑形模量的数值，使得仿真的角度变形量和试验结果相一致. 有限元仿真的塑性环的屈服极限和塑形模量是可测的，可以为以后相关的研究提供参考.Abstract: The stress-strain state of spot welded low carbon steel structure was studied by three methods including extensometer measurement, tensile test and numerical simulation based on ANSYS software. The relationship between angle distortion and load was obtained. The results proved the reliability of simulated mechanics model of spot welding structure including weld and plastic ring and base metal. The relationship between angle distortion and load was achieved by analyzing simulation results of the spot welding structure mechanical model. The yield limit and plastic modulus were adjusted during simulation to make the simulation result of deformation consistent with that of the test result. The test results indicated that the yield limit and plastic modulus of plastic ring were measurable by finite element simulation method which could provide references for relative research.
-
-
[1] 王瑞珍, 罗海文, 董 瀚. 汽车用高强度钢板的最新研究进展[J]. 中国冶金， 2006(9): 1-9.Wang Ruizhen, Luo Haiwen, Dong Han. The latest progress in the car high strength steel[J]. Joural of Metallurgy in China, 2006(9): 1-9.[2] 彭振国. 在汽车制造中的焊接技术现状及发展趋势[J]. 现代焊接, 2006, 44(8): 5-9.Peng Zhenguo. Present situation and development trend of welding technology in automotive manufacturing[J]. Journal of Modern Welding, 2006, 44(8): 5-9.[3] 宇慧平， 王伟伟， 李晓阳. 超高强钢点焊结构拉剪试验及数值仿真[J]. 焊接学报, 2013, 34(10): 9-12.Yu Huiping, Wang Weiwei, Li Xiaoyang. Tesile shear test and numerical simulation of ultra-high strength structure[J]. Transactions of the China Welding Institution, 2013, 34(10): 9-12.[4] 韩立军, 谷诤巍, 张正林. 超高强淬火钢板中频点焊接头组织与断口形貌[J]. 焊接学报, 2010, 31(4): 101-104.Han Lijun, Gu Zhengwei, Zhang Zhenglin. Microstructure and fractography of intermediate frequency spot welding of precision ultra-high strength quenching steel[J]. Transactions of the China Welding Institution, 2010, 31(4): 101-104.[5] 许 君, 张延松, 朱 平. 双相钢搭接点焊接头疲劳寿命分析[J]. 焊接学报, 2008, 29(5): 45-48.Xu Jun, Zhang Yansong, Zhu Ping. Fatigue life analysis of lap-shear spot weld of dual phase steels[J]. Transactions of the China Welding Institution, 2008, 29(5): 45-48.[6] Andrews R M. The effect of misalignment on the fatigue strength of welded cruciform joints[J]. Fatigue & Fracture of Engineering Materials & Structures, 1996, 19(6): 755-768.[7] Yung J Y, Lawrence F V. Analytical and graphical aids for the fatigue design of weldments[J]. Fatigue & Fracture of Engineering Materials & Structures， 1985, 8(3): 223-241.[8] Ertas A H, Sonmez. F O. A parametric study on fatigue strength of spot‐weld joints[J]. Fatigue & Fracture of Engineering Materials & Structures， 2008, 31(9): 766-776.[9] Niu X, Glink A G. The weld profile effect on stress intensity factors in weldments[J]. International Journal of Fracture， 1987, 35(1): 3-20.[10] Lazzarin P, Tovo R. A notch intensity factor approach to the stress analysis of welds[J]. Fatigue & Fracture of Engineering Materials & Structures， 1998, 21(9): 1089-1103. -
期刊类型引用(8)
1. 周桂娟，童志，陈晓华，郑文跃，熊道英，王艳林. X80管线钢焊接与焊缝开裂影响因素研究进展. 材料导报. 2022(02): 168-176 . 
百度学术
2. 朱敏，张延松. X80埋弧焊热影响区的微观组织与局部软化行为分析. 焊接学报. 2021(04): 69-73+96+100 . 本站查看
3. 张岩. 高强钢在轻量化结构设计中的应用及其焊接. 电焊机. 2021(12): 34-40+128 . 百度学术
4. 李赫，王磊，黄勇，周明，周琦，王克鸿. 预热温度对AH36激光焊缝组织及硬度的影响. 焊接. 2021(10): 25-28+62 . 百度学术
5. 卓晓，李立新，李弟，刘译洋，孔海君，赵丹. EH36-Z35钢在低温环境中的焊接冷裂纹敏感性. 机械工程材料. 2020(08): 47-51 . 百度学术
6. 卢尚文，董常福，龚艳丽，何忆斌，张凯. 960 MPa级高强钢焊接热影响区连续冷却曲线的测定及焊接工艺评定. 焊接. 2019(07): 50-56+68 . 百度学术
7. 马俊，朱敏，袁永锋，郭绍义，尹思敏，张强. 交流干扰下不同组织X100钢在格尔木土壤模拟溶液中的腐蚀行为. 表面技术. 2019(08): 272-279 . 百度学术
8. 严春妍，元媛，张可召，吴立超，王宝森. X100管线钢焊接冷裂纹敏感性. 焊接学报. 2019(12): 41-46+162-163 . 本站查看
其他类型引用(5)
计量
- 文章访问数: 344
- HTML全文浏览量: 2
- PDF下载量: 0
- 被引次数: 13
下载:
