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Shock and Vibration
Volume 2018, Article ID 5715863, 26 pages
https://doi.org/10.1155/2018/5715863
Review Article

Linear and Nonlinear Dynamic Analyses of Sandwich Panels with Face Sheet-to-Core Debonding

1Department of Solid Mechanics, Lublin University of Technology, 40 Nadbystrzycka Str., Lublin, Poland
2Department of Applied Mathematics, National Technical University “KhPI”, 2 Kyrpychova Str., Kharkiv, Ukraine

Correspondence should be addressed to Vyacheslav N. Burlayenko; moc.oohay@okneyalrub

Received 5 September 2017; Accepted 31 December 2017; Published 14 February 2018

Academic Editor: Giuseppe Piccardo

Copyright © 2018 Vyacheslav N. Burlayenko and Tomasz Sadowski. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A survey of recent developments in the dynamic analysis of sandwich panels with face sheet-to-core debonding is presented. The finite element method within the ABAQUS™ code is utilized. The emphasis is directed to the procedures used to elaborate linear and nonlinear models and to predict dynamic response of the sandwich panels. Recently developed models are presented, which can be applied for structural health monitoring algorithms of real-scale sandwich panels. First, various popular theories of intact sandwich panels are briefly mentioned and a model is proposed to effectively analyse the modal dynamics of debonded and damaged (due to impact) sandwich panels. The influences of debonding size, form, and location and number of such damage incidents on the modal characteristics of sandwich panels are shown. For nonlinear analysis, models based on implicit and explicit time integration schemes are presented and dynamic responses gained with those models are discussed. Finally, questions related to debonding progression at the face sheet-core interface when dynamic loading continues with time are briefly highlighted.