Analysis of a bi-piezoelectric ceramic layer with an interfacial crack subjected to anti-plane shear and in-plane electric loading

✍ Scribed by Ai Kah Soh; Dai-Ning Fang; Kwok Lun Lee

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 264 KB
• Volume: 19
• Category: Article
• ISSN: 0997-7538
• DOI: 10.1016/s0997-7538(00)01107-4

✦ Synopsis

The behaviour of a bi-piezoelectric ceramic layer with a centre interfacial crack subjected to anti-plane shear and in-plane electric loading has been studied. The dislocation density functions and the Fourier integral transform method have been employed to eliminate the problem of singular integral equations. The normalized energy release rate, stress and electrical displacement intensity factors, G/G 0 , K III /K III0 and K D /K D0 , respectively, were determined for different geometric and property parameters by use of two different crack surface electric boundary conditions, i.e. impermeable and permeable. It has been shown that the effects of the thickness and material constants of the piezoelectric layer on all the three parameters, i.e. G/G 0 , K III /K III0 and K D /K D0 were significant.