正交异性复合材料J积分的研究

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

A Study of J-lntegral of the Orthotropic Composite Material

摘要: 本文推导了正交异性复合材料板Ⅰ型裂纹J积分与位移导数的关系式,同时给出了应力强度因子K_Ⅰ与位移的关系式,采用贴片云纹干涉法对三点弯曲粱进行了测试。由云纹图的位移场求出了J与K_Ⅰ值,进而验证了正交异性复合材料板J与K_Ⅰ的关系式的正确性。
- 正交异性复合材料 /
- J积分 /
- 贴片云纹干涉
Abstract: The relation between J-integral near model I crack tip in the orthotropic plate and displacement derivative is derived in this paper. Meanwhile,the relation between stress intensity factor K₁ and displacement is also given in this paper.With sticking film moire interferometry method,the three-point bending beam is tested,thus the values of J-integral and K₁ can be obtained.from the displacement field,and then the truth of relation formula between J-integral and K₁ in the orthotrtopic composite materials is experimentally verified.
- orthotropic composite material /
- J-integral /
- sticking film moire interferometry

[1]	杨维阳、张少琴、陈华才,关于平面断裂中的J积分,应用数学和力学,11(6) (1990),55-564.
[2]	杨维阳、张少琴.线弹性正交异性复合材料板I,I型裂纹尖端的J积分,应用数学和力学,11(7)(1990),643-650.
[3]	Wang S.S.,Yau J.F.and Corten H.T.,A mixed-mode crack analysis of rectilinearanisotropic solids using conservation laws of elasticity,Inter Jour of Fracture,16,3(1980),241-259.
[4]	罗至善、袁福湘、张桂琴,贴片云纹千涉法,力学学报,22(1) (1990),120
[5]	中国航空研究院,《应力强度因子手册》,科学出版社(1981),188..
[6]	Mojtahed,M.and L.W.Zachary,Use of photoelasticity to determine orthotropic K.stress-intensity factor,Exp.Mech.,27,2,Tune,(1987),184-189.

点击查看大图