基于Weibull分布研究激光-电弧复合焊接接头的力学性能
Research on Mechanical Properties of Laser-Arc Hybrid Welded Joints Based on Weibull Distribution
摘 要
分别对高强钢和不锈钢激光-电弧复合焊接接头进行了室温拉伸试验、三点弯曲试验以及冲击试验，并利用Weibull分布分析了两种焊接接头拉伸、弯曲和冲击性能的稳定性和可靠度。结果表明：对于抗拉强度，不锈钢的可靠度更高；对于弯曲强度，高强钢的可靠度更高；对于冲击吸收能量，不锈钢与高强钢的可靠度相近。
Weibull分布
力学性能
hybrid welding
Weibull distribution
mechanical property
Abstract
The tensile test at room temperature, three point bending test and impact test of high strength steel and stainless steel laser-arc composite welded joint were carried out respectirely. The stability and reliability of the tensile, bending and impact properties of the two kinds of welded joints were analyzed by weibull distribuation. The results show that for tensile strength, reliability of stainless steel is better; for bending strength, reliability of high strength steel is better; for impact absorption energy, reliability of stainless steel and high strength steel is similar.
中图分类号 TG456.7 DOI 10.11973/lhjy-wl201803003
所属栏目 试验与研究
基金项目
收稿日期 2017/6/5
修改稿日期
网络出版日期
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备注周斌(1987-),女,助理工程师,主要从事力学性能试验与分析的研究工作,bzhou@imr.ac.cn
引用该论文: ZHOU Bin,DUAN Qiqiang,ZHANG Peng,ZHANG Zhefeng. Research on Mechanical Properties of Laser-Arc Hybrid Welded Joints Based on Weibull Distribution[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2018, 54(3): 166～168
周斌,段启强,张鹏,张哲峰. 基于Weibull分布研究激光-电弧复合焊接接头的力学性能[J]. 理化检验－物理分册, 2018, 54(3): 166～168
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参考文献
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【3】STEEN W M. Arc augmented laser processing of materials[J]. Journal of Applied Physics,1980,51(11):5636-5641.
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【6】李志宁,都东,常保华,等. 激光-等离子弧复合焊接熔池流动和传热的数值分析[J]. 焊接学报,2007,28(7):37-40.
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【8】BASU B,TIWARI D,KUNDU D,et al. Is Weibull distribution the most appropriate statistical strength distribution for brittle materials[J]. Ceramics International,2009,35(1):237-246.
【9】JUNIOR S,FERRACANE J,BONA A. Flexural strength and Weibull analysis of a microhybrid and a nanofill composite evaluated by 3-and 4-point bending tests[J]. Dental Materials,2008,24(3):426-431.
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