首页 | 本学科首页   官方微博 | 高级检索  
     

多个纵向环形界面裂纹对P波散射的动应力强度因子
引用本文:冯文杰, 邹振祝. 多个纵向环形界面裂纹对P波散射的动应力强度因子[J]. 固体力学学报, 2000, 21(1): 71-78. doi: 10.3969/j.issn.0254-7805.2000.01.011
作者姓名:冯文杰  邹振祝
作者单位:石家庄铁道学院基础部,石家庄,050043; 石家庄铁道学院基础部,石家庄,050043
基金项目:国家自然科学基金!(项目编号:59575025)
摘    要:研究多个纵向环形界面裂纹的P波散射问题.以裂纹面的位错密度函数为未知量,利用Fourier积分变换,将问题归结为第二类奇异积分方程,然后通过数值求解,获得裂纹尖端的动应力强度因子.最后给出了双裂纹动应力强度因子随入射波频率变化的关系曲线.

关 键 词:弹性波散射   纵向环形界面裂纹   奇异积分方程   动应力强度因子

DYNAMIC STRESS INTENSITY FACTORS OF INTERFACE CYLINDRICAL CRACKS SUBJECTED TO P WAVE
Feng Wenjie, Zou Zhenzhu. DYNAMIC STRESS INTENSITY FACTORS OF INTERFACE CYLINDRICAL CRACKS SUBJECTED TO P WAVE[J]. Chinese Journal of Solid Mechanics, 2000, 21(1): 71-78. doi: 10.3969/j.issn.0254-7805.2000.01.011
Authors:Feng Wenjie  Zou Zhenzhu
Abstract:An investigation for the scattering of elastic waves by interface cylindrical cracks subjected to P wave is presented. By using Fourier transform and introducing the dislocation density functions as unknown variables, the problem was reduced to a set of singular integral equations of the second kind which were solved numerically to calculate the dynamic stress intensity factors. Numerical results show that material parameters and geometry criteria have both important influences on the resonance peak.
Keywords:elastic wave scattering   interface cylindrical crack   singular integral equation   dynamic stress intensity factor
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《固体力学学报》浏览原始摘要信息
点击此处可从《固体力学学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号