부산대학교 도서관

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.compstruct.2006.04.034 Byline: Chunhui Yang (a), Lin Ye (a), Zhongqing Su (a), Michael Bannister (b) Keywords: Lamb wave; Composite laminates; Piezoelectric disc; Structural health monitoring; FE modelling Abstract: Some aspects of numerical simulation of Lamb wave propagation in composite laminates using the finite element models with explicit dynamic analysis are addressed in this study. To correctly and efficiently describe the guided-wave excited/received by piezoelectric actuators/sensors, effective models of surface-bounded flat PZT disks based on effective force, moment and displacement are developed. Different finite element models for Lamb wave excitation, collection and propagation in isotropic plate and quasi-isotropic laminated composite are evaluated using continuum elements (3-D solid element) and structural elements (3-D shell element), to elaborate the validity and versatility of the proposed actuator/sensor models. Author Affiliation: (a) Laboratory of Smart Materials and Structures (LSMS), Centre for Advanced Materials Technology (CAMT), School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, NSW 2006, Australia (b) Cooperative Research Centre for Advanced Composite Structures Ltd. (CRC-ACS), 506 Lorimer Street, Fishermans Bend, Vic. 3207, Australia