复合型脆断的应变能判据

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

The Strain Energy Criterion of Mixed-Mode Brittle Fracture

摘要: 本文提出一个十分简单的复合型脆断判据,即应变能判据。该判据可以表示成:(K_Ⅰ/K_Ⅰc)²+(K_Ⅱ/K_ⅡC)²+(K_Ⅲ/K_ⅢC)²=1,它与文献中的实验数据非常一致,是一个实用的判据。本文还提出一个经验判据:(K_Ⅰ/K_Ⅰc)^m+(K_Ⅱ/K_ⅡC)ⁿ=1,1≤≤2。

Abstract: In this paper, we proposed a new cr tenon or mixea-moae brittle fracture, i.e., the strain energy criterion, which can be stated as (K_Ⅰ/K_Ⅰc)² +(K_Ⅱ/K_Ⅱc)²+(K_Ⅲ/K_Ⅲc)²=1. This criterion is shown to be in good agreement with known experimental data.In this paper, an experimental criterion:(K_Ⅰ/K_Ⅰc)^m+(K_Ⅱ/K_Ⅱc)ⁿ=1, 1≤≤2.is also proposed.

[1]	Erdogan, F., G. C. sih, J. Basic Engng., 85D(1963), 519.
[2]	Chang, K. J., Engng. Fracture Mech., 14(1981), 107.
[3]	Chang, K. J., Engny. Fracture Mech., 14(1981), 125.
[4]	Shah, R. C., Fracture analysis, ASTM STP 560(1974), 29.
[5]	Ewing, P. D., J. L. Swedlow, and J. G. Williams, Int. J. of Fracture, 12(1976), 85.
[6]	Liu, A. F., AIAA 73-253, 11th Aerospace Sciences Meeting Washington D. C., Jan.(1973).
[7]	Unpublished Data, Boeing Aerospace Co.,Seattle, Wash.
[8]	Wilson, W. K., Research Report 69-LE7-FMECHRI, Westinhouse Research Laboratories, June(1969).
[9]	Pook, L. P., Engng. Fracture Mech., 3(1971), 205.
[10]	Awaji, H. and S. Sato, J. of Engineering Materials and Technology, 100(1978),175.
[11]	Lee, K. Y. and S. H. Advani, Engng. Fracture Mech., 16(1982), 257.
[12]	Wu, E. M., J. Appl. Mech., 34(1967), 967.

点击查看大图