Interaction of an elastic cylindrical inclusion and a crack in half space impacted by SH-wave

Author

Yang, Zai-lin ; Yan, Pei-lei ; Sun, Bai-tao

Author_Institution

Coll. of Aerosp. & Civil Eng., Harbin Eng. Univ., Harbin, China

fYear

2009

fDate

17-20 Dec. 2009

Firstpage

39

Lastpage

39

Abstract

Scattering of SH wave by an elastic half space containing an elastic cylindrical inclusion and a crack of any position and direction is studied by means of Green´s function, complex function and multi-polar coordinate system. A suitable Green´s function is constructed, which is the fundamental solution of the displacement field for a half space with an elastic cylindrical inclusion impacted by an out-plane harmonic line source loading at an arbitrary point in half space. A crack of any position and direction can be constructed at any region of half space by means of crack-division, and then the displacement field and stress field are established in the case of coexistence of elastic cylindrical inclusion and crack. According to numerical examples, the influences of different parameters on the dynamic stress concentration factor around the elastic cylindrical inclusion and the dynamic stress intensity factor at the crack tip are discussed.

Keywords

Green´s function methods; cracks; elasticity; inclusions; shapes (structures); Green´s function; SH wave impact; complex function; crack; dynamic stress intensity factor; elastic cylindrical inclusion; elastic half space; multipolar coordinate system; Aerodynamics; Aerospace engineering; Boundary conditions; Composite materials; Earthquake engineering; Educational institutions; Equations; Green´s function methods; Scattering; Stress; Green´s function; Scattering of SH-waves; crack; dynamic stress concentration factor (DSCF); dynamic stress intensity factor (DSIF);

fLanguage

English

Publisher

ieee

Conference_Titel

Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) and 2009 China Symposium on Frequency Control Technology, Joint Conference of the 2009 Symposium on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-4950-7

Type

conf

DOI

10.1109/SPAWDA.2009.5428963

Filename

5428963