ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Scattering of SH wave by an elastic half space with a circular cavity and a crack in anyposition and direction is studied with Green’s function, complex function and multi-polarcoordinate method. First, a suitable Green’s function is constructed, which is the fundamentalsolution of the displacement field for a half space with a circular cavity impacted by an out-planeharmonic line source loading at an arbitrary point in half space. Then a crack in any position anddirection is constructed by means of crack-division in half space. Finally the displacement field andstress field are established in the case of coexistence of circular cavity and crack, and the expressionof dynamic stress intensity factor (DSIF) at the tip of crack is given. According to numericalexamples, the influences of different parameters on DSIF are discussed
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.348-349.861.pdf
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