金属学报  1998, Vol. 34 Issue (8): 852-857

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测定高强钢高速冲击动态断裂韧度K_(1d)的新装置及方法

李强;赖祖涵;马常祥

中国科学院金属研究所材料疲劳与断裂国家重点实验室;沈阳;110015;中国科学院国际材料物理中心;沈阳;110015;东北大学理学院;沈阳;110006

A NEW ASSEMBLY AND EVALUATION OF DYNAMIC FRACTURE TOUGHNESS K_(1d) OF HIGH STRENGTH STEEL AT HIGH VELOCITY IMPACT

LI Qiang(State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; The Chinese Academyof Sciences; Shenyang 110015)LAI Zuhan(International Centre for Material Physics; The Chinese Academy of Sciences; Shenyang 110015)MA Changxiang(College of Sciences; Northeastern University; Shenyang 110006)Correspondent: LI Qiang; Tel: (024)23843531-55659; Fax: (024)3891320; E-mail: qli imr ac.cn

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.
, , . A NEW ASSEMBLY AND EVALUATION OF DYNAMIC FRACTURE TOUGHNESS K_(1d) OF HIGH STRENGTH STEEL AT HIGH VELOCITY IMPACT[J]. Acta Metall Sin, 1998, 34(8): 852-857.

摘要 参考文献 相关文章 Metrics 全文: PDF(453 KB)   摘要: 本文描述一种长杆高速冲击确定K1d的实验装置，提出在断裂时间tf＜τ（τ为试样固有振动周期）范围内确定动态断裂韧度K1d的原理与方法，给出包含冲击速度（v0）和冲击载荷（P（t））的K1d计算公式利用该实验装置和所给K1d计算方法在不同的冲击速度条件下，测得三种回火处理30MnCrNiMoB高强装甲钢的K1d，结果表明K1d随加载时间增加而增加 关键词 ： 动态断裂韧度,  长杆高速冲击,  高强装甲钢     Abstract：A new assembly with a long impact bar for measuring the dynamic fracture toughness K1d under the condition of fast fracture is described in this paper. The basic principle and the method evaluating K1d under the condition of the fracture time tf being less than the oscillation period of the specimen (τ) are given which include not only the impact velocity but also the impact load. An example is presented for measuring K1d of high strength armour steel 30MnCrNiMoB quenched and tempered at 200 - 600℃. The results show that Kid increases　with the loading time under high velocity impact, which are similar to those of 4340 AVR steel reported. Key words： dynamic fracture toughness    high velocity impact    high strength armour steel 收稿日期: 1998-08-18      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 李强 赖祖涵 马常祥 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1998/V34/I8/852 1 Donald A. Dynamic Fracture Testing, Metals Handbook Vo1.8, New York: ASM, 1985: 259 2 Kobayashi T. Eng Fract Mech, 1984; 19: 49 3 Kobayashi T. Eng Fract Mech 1984; 19: 67 4 Kishimoto K, Aoki S, Sakata M. Eng Fract Mech 1980; 13: 501 5 Nash G E. Int J Fract Mech, 1969; 15: 269 6 Lee Y, Prakash V. Metoll Mater Trans, 1995; 26A: 2527 7 Tang C A, Xu X H. Eny Fract Mech 1990; 35(4/5): 783 8 Kalthoff J F. Int J Fract, 1985; 27: 277 9 Martin E, Mack T, Quenisset J M. Eng Fract Mech 1986; 24: 821 10 Liu Y N, Zhu J H, Zhou H J. Eng Fract Mech 1991; 39: 955 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed