INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 卷:51 |
Low-energy impact response of composite and sandwich composite plates with piezoelectric sensory layers | |
Article | |
Plagianakos, Theofanis S.1  Papadopoulos, Evangelos G.1  | |
[1] Natl Tech Univ Athens, Dept Mech Engn, Control Syst Lab, GR-15780 Athens, Greece | |
关键词: Low-energy impact; Piezoelectric; Composite; Sandwich; Plates; Layenvise mechanics; Interfacial stress; | |
DOI : 10.1016/j.ijsolstr.2014.04.005 | |
来源: Elsevier | |
【 摘 要 】
An efficient model reduction based methodology is presented for predicting the global (impact force, plate deflection and electric potential) and through-thickness local (interfacial strains and stresses) dynamic response of pristine simply-supported cross-ply composite and sandwich composite plates with piezoelectric sensory layers subjected to low-energy impact. The through-thickness response of the laminate is modelled using coupled higher-order layerwise displacement-based piezoelectric laminate theories. Linearized contact laws are implemented for simulating the impactor-target interaction during impact. The stiffness, mass, piezoelectric and permittivity matrices of the plate are formulated from ply to structural level and reduced by applying a Guyan reduction technique to yield the structural system in state space. This reduction technique enables the formulation of a plate-impactor structural system of minimum size (1 term per vibration mode for composite plates - 2 terms for sandwich plates) and reduces computational cost, thus facilitating applicability for real-time impact and vibration control. (C) 2014 Elsevier Ltd. All rights reserved.
【 授权许可】
Free
【 预 览 】
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