金属学报  1978, Vol. 14 Issue (3): 239-326

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裂纹顶端应变与应力的研究

邓枝生;陈篪

北京钢铁研究院;北京钢铁研究院

AN INVESTIGATION OF THE CRACK-TIP STRESS AND STRAIN

Deng Zhi-sheng Chen Chi (Chen Chih)(Beijing Institute of Iron and Steel Research)

邓枝生;陈篪. 裂纹顶端应变与应力的研究[J]. 金属学报, 1978, 14(3): 239-326.
, . AN INVESTIGATION OF THE CRACK-TIP STRESS AND STRAIN[J]. Acta Metall Sin, 1978, 14(3): 239-326.

摘要 参考文献 相关文章 Metrics 全文: PDF(2309 KB)   摘要: 本工作应用Fry试剂及显微硬度法研究了裂纹顶端地区的应力、应变,结果证明:随着试样总体应变的增长(弯曲角的增加),裂纹顶端的应力也在增长,增长的规律遵循我们在线性硬化律■=β+γ■下所推导的关系: J=G+[(β/3~(1/2)+1/2(σ_(YY))_A)]δ_p直到临界点时 J_c=G_c+(β/3~(1/2)+1/2σ_F)δ_(p,c)证实在临界点(σ_(YY))_A=σ_F Abstract：With the aid of etching by Fry's reagent and microhardness measurements, the crack-tip stress and strain have been investigated. The results obtained may be summarized as follows:The crack-tip stress increases simultaneously with the angle of bend of the specimen in accord with the relationJ=G+[(β/3~(1/2)+1/2(σ_(YY))_A)]δ_p derived by us under the linear hardening law:■=β+γ■until the critical point is reached:J_c=G_c+(β/3~(1/2)+1/2σ_F)δ_(p,c) demonstrating that at the critical point(σ_(YY))_A=σ_F 收稿日期: 1978-03-18      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 邓枝生 陈篪 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1978/V14/I3/239 [1] 陈篪,金属学报,13(1977) .57;Scientia Sinica,ⅩⅪ(1978) ,112． [2] 陈篪,待发表工作. [3] 希尔,R,塑性数学理论,王仁等译,科学出版社,1966年,282页. [4] 陈篪,待发表工作. [5] 陈篪等,金属学报,11(1975) ,174．Y No related articles found! Viewed Full text Abstract Cited   Shared      Discussed