基于热点应力的罐车焊接钢结构疲劳

白亚男; 邓彩艳; 龚宝明; 王胜

doi:10.12073/j.hjxb.2019400106

基于热点应力的罐车焊接钢结构疲劳

天津大学材料科学与工程学院，天津　300350

基金项目:

国家自然科学基金资助项目(51305295)

详细信息

作者简介:
白亚男，男，1993年出生，硕士. 主要研究方向为焊接结构的强度和断裂及安全评估. Email：baiyanan2588@tju.edu.cn

通讯作者:
龚宝明，男，博士，讲师. Email：gong_bm@tju.edu.cn

中图分类号: TG 405
计量
- 文章访问数: 223
- HTML全文浏览量: 11
- PDF下载量: 5
出版历程
- 收稿日期: 2017-09-25

Study on fatigue property of welded steel structure of tanker based on hot spot stress approach

School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China

摘要

摘要: 针对罐车焊接钢结构在不同服役情况下的疲劳行为进行了研究. 试验过程中选取了高速路、公路、崎岖路三种典型的路况，通过所得不同部位的应变结果计算各自的热点应力，用雨流法处理后编制载荷谱，并根据线性累积损伤理论来计算各部位的疲劳寿命. 结果表明，罐车焊接钢结构上不同部位在不同路况下行驶具有不同的寿命，其中最危险的部位是侧面中下处的9和10，其在高速路上行驶疲劳寿命最低，约为3.3年. 结合路况和驾驶行为，实时观察波形图发现，相比于路面不平，急刹车、上下坡、转弯会对罐车焊接钢结构的寿命产生更大的影响.
- 疲劳寿命 /
- 热点应力 /
- 焊接结构
Abstract: The fatigue behavior of welded steel structure of tanker under different service conditions was studied. Three typical road conditions, super highway, highway and rugged road were selected. The hot spot stress was calculated by strain measurement at different positions, and the load spectrum was compiled according to the processed data by rain-flow method. Thereafter, the fatigue life of each position was calculated according to the theory of linear cumulative damage. The results showed that the different positions of welded structure had different fatigue life under different service conditions, and the dangerous positions were 9 and 10, which had the lowest fatigue life on the super highway. Combined with the road conditions and driving behavior, the real-time observation of the waveform showed that the emergency brake, climbing slope or getting down slope and turning would have a greater impact on the fatigue life compared to the road roughness.
- fatigue life /
- hot spot stress /
- welded structure

HTML全文

参考文献(17)

[1]	Ma Hanyang, Zhu Xingbang, Dong Jinshan. Calculation of fatigue cumulative damage about marine LNG fuel tank based on 97.6% survival rate[J]. Pressure Vessel Technology, 2016, 33(11): 39 − 44
[2]	霍立兴. 焊接结构的断裂行为及评定[M]. 北京: 机械工业出版社, 2000.
[3]	Peng Fan, Yao Yunjian, Gu Yongjun. Influence factors of fatigue strength assessment for welded joints by hot spot stress approach[J]. Transactions of the China Welding Institution, 2010, 31(7): 83 − 86
[4]	马寒阳, 朱星榜, 董金善. 基于97.6%存活率船用LNG燃料罐疲劳累积损伤度计算[J]. 压力容器, 2016, 33(11): 39 − 44
[5]	彭凡, 姚云建, 顾勇军. 热点应力法评定焊接接头疲劳强度的影响因素[J]. 焊接学报, 2010, 31(7): 83 − 86
[6]	Zhou Zhangyi, Li Fu, Huang Yunhua. Study of fatigue strength assessment of welds based on hot spot stress[J]. Diesel Locomotives, 2008(7): 1 − 5
[7]	周张义, 李芾, 黄运华. 基于热点应力的焊缝疲劳强度评定研究[J]. 内燃机车, 2008(7): 1 − 5
[8]	Yang Yang, Xu Xiaolong, Qi Xiaoliang, et al. Spectral-based fatigue analysis of a single point mooring buoy[J]. Ship & Ocean Engineering, 2017, 46(1): 109 − 113
[9]	Hu Huihui, Wang Dongpo, Wu Liangchen, et al. Hot spot stress design S-N curve of ultrasonic impact treated welded joints of medium and low strength steel[J]. Transactions of the China Welding Institution, 2016, 37(5): 124 − 128
[10]	杨洋, 徐霄龙, 齐晓亮, 等. 基于谱分析法的单点浮筒疲劳强度分析[J]. 船海工程, 2017, 46(1): 109 − 113
[11]	Jia Fayong, Huo Lixing, Zhang Yufeng, et al. Key influence factors in hot spot stress FEM analysis[J]. Transactions of the China Welding Institution, 2003, 24(3): 27 − 30
[12]	胡会会, 王东坡, 吴良晨, 等. 中低强度钢超声冲击处理焊接接头热点应力设计曲线[J]. 焊接学报, 2016, 37(5): 124 − 128
[13]	贾法勇, 霍立兴, 张玉凤, 等. 热点应力有限元分析的主要影响因素[J]. 焊接学报, 2003, 24(3): 27 − 30
[14]	Maddox S J. Hot-pot fatigue data for welded steel and aluminum as a basis for design[C]//IIW document XIII-1900-01, Liubljana, 2001, 2 – 4.
[15]	Tveiten B W, Berge S, Wang X. Fatigue assessment of aluminum ship details by hotspot stress approach[C]//ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013: 549 – 558.
[16]	Hobbacher A. Recommendations for fatigue design of welded joints and components[M]. New York: Welding Research Council, 2009.
[17]	ASTM. Standard practices for cycle counting in fatigue analysis (E1049–85)[S]. West Conshohocken: American Society for Testing and Materials, 2005.

施引文献(9)

期刊类型引用(6)

1.	马晓阳，何亮，成应晋，王杏华，程彬，贺智涛. BP神经网络预测船用钢焊接接头力学性能研究. 金属制品. 2024(03): 59-63 . 百度学术
2.	黄伟波，赵晓宇. 选区激光熔化成形参数对熔池尺寸的影响. 肇庆学院学报. 2023(05): 65-73+79 . 百度学术
3.	马佳博，王成玥，陈峰. 加激光选区熔化成形技术的产品设计三维模型研究. 激光杂志. 2020(05): 134-138 . 百度学术
4.	吕小青，王旭，徐连勇，荆洪阳，韩永典. 基于组合模型的MAG焊工艺参数多目标优化. 焊接学报. 2020(02): 6-11+97 . 本站查看
5.	邢晓芳，贲强，周勇，路浩，韩佩. 基于回归分析的螺母凸焊工艺优化. 焊接学报. 2020(12): 91-96+102 . 本站查看
6.	常峰博，高亮，陈宇翔，佟志光，李铭钰，滕征泰. 正交法激光焊接双相钢工艺优化. 应用激光. 2020(06): 1061-1066 . 百度学术