金属学报  1977, Vol. 13 Issue (3): 214-258

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单试样测J_(Ic)法中若干问题

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钢铁研究院断裂韧性研究组

SOME PROBLEMS CONCERNING THE J_Ic DETERMINATION BY MEANS OF A SINGLE SPECIMEN

Res. Gp. of Fracture Toughness; Peking Institute of Iron and Steel Research

No Author. 单试样测J_(Ic)法中若干问题[J]. 金属学报, 1977, 13(3): 214-258.
. SOME PROBLEMS CONCERNING THE J_Ic DETERMINATION BY MEANS OF A SINGLE SPECIMEN[J]. Acta Metall Sin, 1977, 13(3): 214-258.

摘要 参考文献 相关文章 Metrics 全文: PDF(1799 KB)   摘要: 本文主要论述单试样测J_(Ic)法中确定开裂点的方法,提出从P-Δ记录曲线计算加载过程中裂纹长度增长的解析方法和以测量裂纹顶端张开位移量为基础的方法,井用实例证明两法的有效性。本文还针对J积分与形变功间的关系报道了新近的实验结果,证实了对紧凑拉伸试样的滑移线场的假设和对极限载荷P_L所获得的结果,也证实了我们对紧拉试样所提出的J-U关系。 Abstract：The present paper deals with the method of locating the crack initiation point inJ_(IC) determinahon by means of a single specimen. The first is an analytical method forcalculating crack length variations during monotonic loading from the load-displace-ment record alone, and the second is based on And-sectional measurements of C. T. O. D.Results of application of these methods are presented which demonstrate the effective-ness of the methods proposed. In additional, some recent experimental results are also reported which substanti-ate the slip-line field proposed earlier for the CT specimen, the result for the limit loadP_L, and the J-U relation obtained by us. 收稿日期: 1977-03-18      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 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1977/V13/I3/214 [1] 陈篪、姚蘅、邓枝生、庄韬、邓其源,科学通报,(1975) ,329． [2] 陈篪,金属学报,12(1976) ,129． [3] 陈篪、姚蘅、邓枝生、庄韬、邓其源,金属学报,11(1975) ,174． [4] 陈篪,未发表工作. [5] Rice, J. R. et al., Amer. Soc. Test. Mater., Spec. Tech. Publ. No. 536, 1973, p. 231． [6] 陈篪、姚蘅、金志英,科学通报,(1974) , 41． [7] Roberts, E. Jr., Mater. Res. Stand., 9 (1969) , 27． [8] Ewing, D. J. F. and Richards, C. E., J. Mech. Phys. Solids, 22 (1974) , 27． [9] Feddern, G. and Macherauch, E., Proc. 3rd Int. Congr. Fracture, pt. Ⅲ. [10] Gross, B. et al., Int. J. Fract. Mech., 4 (1968) , 267． [11] Otsuka, A et al., Eng. Fract. Mech., 7 (1975) , 419． [12] Arii, M. et al., Eng Fract. Mech., 7 (1975) , 551． [13] Green, G. and Knott, J. F., J. Mech. Phys. Solids, 23 (1975) , 167． [14] Robinson, J. N. and Tetelman, A. S., Proc. 3rd Int. Congr. Fracture, pt. Ⅱ. No related articles found! Viewed Full text Abstract Cited   Shared      Discussed