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DYNAMIC BEHAVIOR OF TWO PARALLEL SYMMETRIC PERMEABLE CRACKS IN A PIEZOELECTRIC STRIP 被引量:1
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作者 Zhou Zhengong Du Shanyi Wang Biao 《Acta Mechanica Solida Sinica》 SCIE EI 2002年第4期294-302,共9页
The dynamic behavior of two parallel symmetric cracks in a piezoelectricstrip under harmonic anti-plane shear waves is studied using the Schmidt method for permeable cracksuface conditions. The cracks are parallel to ... The dynamic behavior of two parallel symmetric cracks in a piezoelectricstrip under harmonic anti-plane shear waves is studied using the Schmidt method for permeable cracksuface conditions. The cracks are parallel to the edge of the strip. By means of the Fouriertransform, the problem can be solved with the help of two pairs of dual integral equations. Theseequations are solved using the schmidt method. The results show that the stress and the electricdisplacement intensity factors depend on the geometry of the cracks, the frequency of incidentwaves, the distance between cracks and the thickness of the strip. It is also found that theelectric displacement intensity factors for the permeable crack surface conditions are much smallerthan those for the impermeable crack surface conditions. 展开更多
关键词 piezoelectric strip schmidt method dual integral equations parallelcrack
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