金属学报  1988, Vol. 24 Issue (6): 426-431

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采用环状裂纹圆棒试样测定中低强度钢的断裂韧度

刘再华;赵东立

武汉市喻家山华中工学院力学系;国家机械委成套局

MEASUREMENT OF K_(IC) OF MEDIAN OR LOW STRENGTH STEEL USING ROUND BARS WITH CIRCUMFERENCIAL CRACK

LIU Zaihua;ZHAO Dongli Huazhong University of Science and Technology; Wuhan Bureau of Complete Sets of Equipment; State Machinery Commission; Beijing Manuscript received 26 January; 1984; revised manuscript 22 August; 1987

刘再华;赵东立. 采用环状裂纹圆棒试样测定中低强度钢的断裂韧度[J]. 金属学报, 1988, 24(6): 426-431.
, . MEASUREMENT OF K_(IC) OF MEDIAN OR LOW STRENGTH STEEL USING ROUND BARS WITH CIRCUMFERENCIAL CRACK[J]. Acta Metall Sin, 1988, 24(6): 426-431.

摘要 参考文献 相关文章 Metrics 全文: PDF(827 KB)   摘要: 本文应用环状裂纹受拉圆棒试样的尺寸效应于测定中低强度钢的平面应变断裂韧度K_(IC)。所用试样的尺寸比标准试样小很多。用J积分分析了尺寸效应,并通过有限元计算和断口分析探讨了允许用较小尺寸的圆棒试样测定K_(IC)的原因。 关键词 ： 中低强度钢,  断裂韧度,  圆棒试样     Abstract：The size effect of tension round bars with circumferencial crack wasdescribed and used to measure the planestrain fracture toughness K_(IC) of median orlow strength steel. The size of cylindrical specimen. required for K_(IC) measurement ismuch smaller than that of standard specimen. The J-integral values of the cylin-drical specimens were calculated to characterize the size effect. The finite elementcalculation and fracture morphology analysis have been conducted to explain thefact that smaller cylindrical specimen could be used to measure K_(IC) of median orlow strength steel. Key words： median or low strength steel    fracture toughness    round bars specimen 收稿日期: 1988-06-18      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 刘再华 赵东立 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1988/V24/I6/426 1 Jones M H, Bubsey R T, Bucci R J, Collis S F, et al. Development in Fracture Mechanics Test Methods Standardization, ASTM STP 632, 1977: 115--152 2 Bueckner H F. Fracture Toughness and its Applecations, ASTM STP 381, 1965: 82 3 Rice J R, Paris P C, Merkle J G. Progress in Filaw Growth and Fracture Toughness Testing, ASTM STP536, Philadelphia: ASTM, 1973: 231--244 4 肖纪美.金属的韧性与韧化,第二章,上海科技出版社,1980:27--85 5 Hoffman O,Sachs G.乔端,孙梁译.工程塑性力学基础,中国工业出版社,1965:154--157 6 Качанов Л М.周承倜,唐照千译.塑性理论基础,高等教育出版社,1965:203\ [1] 李强;赖祖涵;马常祥. 测定高强钢高速冲击动态断裂韧度K_(1d)的新装置及方法[J]. 金属学报, 1998, 34(8): 852-857. [2] 李焕喜;陈昌麒. 高强度变形铝合金断裂韧度各向异性的机理和预测[J]. 金属学报, 1992, 28(3): 15-20. Viewed Full text Abstract Cited   Shared      Discussed