Journal
COMPOSITE STRUCTURES
Volume 75, Issue 1-4, Pages 267-275Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2006.04.034
Keywords
Lamb wave; composite laminates; piezoelectric disc; structural health monitoring; FE modelling
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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. (C) 2006 Elsevier Ltd. All rights reserved.
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