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TRANSIENT RESPONSE OF A CRACKED INFINITE PIEZOELECTRIC STRIP UNDER ANTI‐PLANE IMPACT
Author(s) -
Xiaobo Yu,
Zengtao Chen
Publication year - 1998
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1046/j.1460-2695.1998.00108.x
Subject(s) - piezoelectricity , electric displacement field , displacement (psychology) , electric field , materials science , transient (computer programming) , transient response , work (physics) , plane (geometry) , stress (linguistics) , structural engineering , mechanics , composite material , mathematics , physics , engineering , geometry , mechanical engineering , computer science , electrical engineering , psychology , linguistics , philosophy , quantum mechanics , psychotherapist , operating system
By using the well‐established integral transform methodology, the dynamic response of stress and electric displacement around a finite crack in an infinite piezoelectric strip are investigated under anti‐plane impact. The dynamic intensity factors of stress and electric displacement are obtained analytically. The results show that the dynamic electric field will promote or retard the propagation of the crack at different stages of the loading process. On the other hand, the response of the electric field is coherent with the applied electric load and independent of the external mechanical load. The result obtained for the anti‐plane impact of a cracked infinite piezoelectric ceramic can be regarded as a special case of the present work when the width of the strip tends to infinity.