Dynamic analysis for shallow buried circular inclusion impacted by SH-wave in a softlayered half-space

Zhao Yuanbo; Qi Hui; Ding Xiaohao; Zhao Dongdong

doi:10.11883/1001-1455(2017)06-0982-08

Volume 37 Issue 6

Sep. 2017

Turn off MathJax

Article Contents

Article Navigation > Explosion And Shock Waves > 2017 > 37(6): 982-989

Zhao Yuanbo, Qi Hui, Ding Xiaohao, Zhao Dongdong. Dynamic analysis for shallow buried circular inclusion impacted by SH-wave in a softlayered half-space[J]. Explosion And Shock Waves, 2017, 37(6): 982-989. doi: 10.11883/1001-1455(2017)06-0982-08

Citation:

Zhao Yuanbo, Qi Hui, Ding Xiaohao, Zhao Dongdong. Dynamic analysis for shallow buried circular inclusion impacted by SH-wave in a softlayered half-space[J]. Explosion And Shock Waves, 2017, 37(6): 982-989. doi: 10.11883/1001-1455(2017)06-0982-08

Citation:

PDF( 1793 KB)

Dynamic analysis for shallow buried circular inclusion impacted by SH-wave in a softlayered half-space

doi: 10.11883/1001-1455(2017)06-0982-08

College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang, China

Received Date: 2016-04-12
Rev Recd Date: 2016-07-12
Publish Date: 2017-11-25

Abstract

Abstract

In this study, we investigated the dynamic stress concentration factor of single circular inclusion shallow buried in surface softlayered half space impacted by steady SH-wave using the complex variable function method and the wave function expansion method, and obtained the analytical solution. Based on the attenuation characteristic of SH-Wave scattering and using the large-arc assumption method, we converted the problem of the layer half space linear boundary to that of the circle boundary and, by an example, analyzed the influence of different incident wave numbers and the ratios of the circular inclusion to the half space on the distribution of the dynamic stress concentration factor and on the change of the maximum dynamic stress concentration when the incident SH-wave is vertical. Numerical examples show that the "softer" the circular inclusion, the greater its wave number of circular inclusions, and the larger the dynamic stress concentration factor around the circular inclusion; the maximum dynamic stress concentration factor around circular inclusion reaches its maximum value when the number of the incident SH-wave approaches 0.35.
- SH-wave scattering,
- soft surface layer,
- circular inclusion,
- large-arc assumption method,
- dynamic stress concentration factor

FullText(HTML)

References(9)

References

[1]	于翔, 陈启亮, 赵跃堂, 等.地下结构抗震研究方法及其现状[J].解放军理工大学学报(自然科学版), 2000, 1(5):63-69. http://d.old.wanfangdata.com.cn/Periodical/jfjlgdxxb200005013 Yu Xiang, Chen Qiliang, Zhao Yuetang, et al.The status quo and methods ofantiseismic research of underground structure[J]. Journal of PLA University of Science and Technology (Natural Science Edition), 2000, 1(5):63-69. http://d.old.wanfangdata.com.cn/Periodical/jfjlgdxxb200005013
[2]	Pao Y H, Mow C C, Achenbach J D.Diffraction of elastic waves and dynamic stress concentrations[M]. New York:Crane and Russak, 1973:114-304.
[3]	Liu D, Gai B, Tao G.Applications of the method of complex functions to dynamic stress concentrations[J]. Wave Motion, 1982, 4(3):293-304. doi: 10.1016/0165-2125(82)90025-7
[4]	Qi H, Yang J.Dynamic analysis for circular inclusions of arbitrary positions near interfacial crack impacted by SH-wave in half-space[J]. European Journal of Mechanics:A-Solids, 2012, 36(1):18-24. http://www.sciencedirect.com/science/article/pii/S0997753812000319
[5]	齐辉, 折勇, 李宏亮, 等.SH波入射时垂直半空间中双相介质界面附近圆孔的动力分析[J].爆炸与冲击, 2009, 29(1):73-79. doi: 10.3321/j.issn:1001-1455.2009.01.014 Qi Hui, Shi Yong, Li Hongliang, et al.Dynamic analysis for scattering of SH-wave by circular cavitiesnear bimaterial interfaces in a vertical half-space[J]. Explosion and Shock Waves, 2009, 29(1):73-79. doi: 10.3321/j.issn:1001-1455.2009.01.014
[6]	Lee V W, Karl J.Diffraction of elastic plane P wave by circular underground unlined tunnels[J]. European Earthquake Engineering, 1993, 6(1):29-36.
[7]	齐辉, 陈冬妮, 蔡立明.带覆盖层半空间内SH波对浅埋圆孔及夹杂散射与地震动[J].振动与冲击, 2014, 33(22):152-156. http://d.old.wanfangdata.com.cn/Periodical/zdycj201422028 Qi Hui, Chen Dongni, Cai Liming.Scattering of SH-wave to subsurface circular cavity andinclusion in a layered half-space and the induced ground motion[J]. Journal of Vibration and Shock, 2014, 33(22):152-156. http://d.old.wanfangdata.com.cn/Periodical/zdycj201422028
[8]	陈冬妮, 齐辉.SH波入射覆盖层半空间圆孔及圆夹杂的动力分析[J].哈尔滨工程大学学报, 2014, 35(2):171-176. http://d.old.wanfangdata.com.cn/Periodical/hebgcdxxb201402006 Chen Dongni, Qi Hui.Dynamic analysis for circular cavity and inclusionimpacted by SH-wave in a layered half-space[J]. Journal of Harbin Engineering University, 2014, 35(2):171-176. http://d.old.wanfangdata.com.cn/Periodical/hebgcdxxb201402006
[9]	林宏, 刘殿魁.半无限空间中圆形孔洞周围SH波的散射[J].地震工程与工程振动, 2002, 22(2):9-16. doi: 10.3969/j.issn.1000-1301.2002.02.002 Lin Hong, Liu Diankui.Scattering of SH-wave around a circular cavity in half space[J]. Earthquake Engineering and Engineering Vibration, 2002, 22(2):9-16. doi: 10.3969/j.issn.1000-1301.2002.02.002