全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

SH波作用下浅埋裂纹附近半圆形凸起的地震动

, PP. 16-23

Keywords: SH波散射,半圆形凸起,裂纹,Green函数

Full-Text   Cite this paper   Add to My Lib

Abstract:

利用Green函数、复变函数及多极坐标法研究了浅埋裂纹附近的半圆形凸起地形对SH波的散射问题。首先求解出适合本问题的Green函数,即含有半圆形凸起的弹性半空间内任意一点承受时间谐和的出平面线源荷载作用时位移场的解答。然后,从半圆形凸起地形对SH波的散射问题出发,利用本问题的Green函数在基体内构造裂纹。最后给出了浅埋裂纹附近的半圆形凸起地形对SH波散射的位移场。通过算例讨论了裂纹对地表位移幅值的影响,结果表明裂纹在一定情况下具有减震作用。

References

[1]  Shi GC.Stress distribution near in ternal crack tips for longitudinal shear problems[J].Journal of Applied Mechanics,1965,32(1):51-58.
[2]  刘殿魁,刘宏伟.孔边裂纹对 SH 波散射及动应力强度因子[J].力学学报,1999,31(3):292-299.
[3]  史守峡,刘殿魁,杨庆山.SH 波对内含裂纹衬砌结构的散射与动应力集中[J].爆炸与冲击,2000,20(3):228-234.
[4]  陆建飞,蔡兰,柳春图.圆夹杂内裂纹对SH波的动力响应[J].力学学报,2003,35(5):623-627.
[5]  Liu Diankui,Chen Zhigang.Scattering of SH-wave by cracks originating at an elliptic hole and dynamic stress intensity factor[J].Applied Mathematics and Mechanics,2004,25(9):958-966.
[6]  Liu Diankui,Lin Hong.Scattering of SH-waves by an interface linear crack and a circular cavity near bimaterial interface[J].ACTA Mechanica Sinica.2004,20(3):317-326
[7]  Yang Zailin,Lü Diankui,Lü xiaotang.Dynamics of a mode Ⅲ crack mipacted By elastic wave in half space with a removable Rigidcyl indrical in clusion[J].Key Engineering Materials,2006,(324-325):679-682.
[8]  李宏亮.SH波作用下孔洞、夹杂与直线形裂纹的相互作用[D].哈尔滨:哈尔滨工程大学,2004.
[9]  Yuan Xiaoming,Men Fulu.Scattering of plane SH-waves by a semi-cylindrical hill[J].Earthq.Eng.and Struct.Dynamics,1992(21):1091-1098.
[10]  刘殿魁,王国庆.浅埋圆形孔洞附近的半圆形凸起对SH波的散射[J].力学学报,2006,38(2):209-21.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133