金属学报  1987, Vol. 23 Issue (5): 468-473

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结构钢焊缝金属的塑性和三轴应力状态

史耀武;朱登河;孙余平

西安交通大学;西安交通大学;西安交通大学

PLASTICITY AND TRIAXIALITY IN STRUCTURAL STEEL AND ASSOCIATED WELD METALS

by SHI Yaowu; ZHU Denghe; SUN Yuping (Xi'an Jiaotong University)(Manuscript received 15 January; 1985; revised manuscript 11 November; 1985)

史耀武;朱登河;孙余平. 结构钢焊缝金属的塑性和三轴应力状态[J]. 金属学报, 1987, 23(5): 468-473.
, , . PLASTICITY AND TRIAXIALITY IN STRUCTURAL STEEL AND ASSOCIATED WELD METALS[J]. Acta Metall Sin, 1987, 23(5): 468-473.

摘要 参考文献 相关文章 Metrics 全文: PDF(733 KB)   摘要: 为了评价应力状态对低强度结构钢及其焊缝金属塑性和韧性的影响,采用20G低碳锅炉结构钢及其全焊缝金属的圆周缺口拉伸试样进行试验.结果表明结构钢及其焊缝金属的初始断裂应变受到三轴应力状态的强烈影响.在同样的三轴应力状态条件下,J427焊缝金属的断裂应变值最高,J422焊缝金属的断裂应变值最低.同时,就实验所用结构钢及其焊缝金属确定了反映其冶金特征的材料常数C值。 Abstract：In order to assess the effect of stress triaxiality on the plasticity and ductility of the structural mild steel and the associated weld metals, the tensile tests on notched round bar specimens were performed. The results indicated that the strains to initiate failure for the boiler steel and weld metals were a strong function of stress states. Under the same triaxiality the failure initiation strain of J427 weld metal was the largest among these materials, and that of J422 weld metal was the smallest. Moreover, the material constant C values relating to the metallurgical characteristics were given for the experimental steel and weld metals. 收稿日期: 1987-05-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 史耀武 朱登河 孙余平 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1987/V23/I5/468 1 Milne I, Curry D A. In: Radon J C ed., Fracture and Fatigue, Proc 3rd European Conf on Fracture, Oxford: Pergamon, 1980: 39 2 Hancock J W, Cowling M J. Met Sci, 1980; 14: 293 3 Shi Y W (史耀武), Barnby J T, Nadkarni A S. In: Valluri S R et al, eds., Advances in Fracture Research, Proc 6th Int Conf on Fracture, Oxford: Pergamon, 1984: 1329 4 Mackenzie A C, Moakler M. In: Pressure Vessel Technology, Part 2, ASME, 1973: 1167 5 Bridgman P W. Studies in Large Flow and Fracture, New York: McGraw-Hill, 1952 6 Rice J R, Tracey D W. J Mech Phys Solids, 1969; 17: 201 7 Shi Y W (史耀武), Barnby J T. Int J Fract, 1984; 25: 14 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed