On Remarkable Loss Amplification Mechanism in Fiber Reinforced Laminated Composite Materials
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On Remarkable Loss Amplification Mechanism in Fiber Reinforced Laminated Composite Materials S. Lurie & M. Minhat & N. Tuchkova & J. Soliaev
# Springer Science+Business Media Dordrecht 2014
Abstract In this present work, we investigate damping behavior of filled and layered composite material that has its inclusions coated by viscoelastic coating material. To analyze its behavior, we use generalized self-consistent Eshelby method with correspondence principle approach. The viscous coating layer is assumed to possess properties at its glass transition temperature. This analytical study reveals that at ultra thin coating layer, the composite exhibits very high loss characteristics where its effective loss moduli significantly exceed the loss moduli of both coating and matrix materials. High shearing dissipation mechanism in ultra thin layer of viscoelastic coating material is found to be responsible for this peculiar behavior. This remarkable loss amplification effect is technologically appealing as such composites with high damping and high stiffness properties might be attainable. Keywords Filled and layered composites . Inclusions . Viscoelastic coating . Self-consistent Eshelby model . Effective loss modulus . Dissipation mechanism . Optimal design
1 Introduction Effective vibrational and noise control structures are important in aerospace and automotive industry [1, 2]. Less vibrational energy leads to longer life of components and structures while less noise means comfort to passengers as well as to surrounding environments. In aerospace industry, the requirement for high vibrational damping and high strength/stiffness composites now seems to be mandatory especially when more aircraft structural components are designed with reinforced polymer-matrix composite materials. As a result, various design optimizations S. Lurie (*) : J. Soliaev Department of Composite Material Model, Institute of Applied Mechanics of RAS, Moscow, Russia e-mail: [email protected] M. Minhat Aerospace Faculty, Moscow Aviation Institute (National Technical University), Moscow, Russia M. Minhat Aerospace Department, UniKL Malaysian Aviation Institute Technology, Dengkil, Selangor, Malaysia N. Tuchkova Department of Composite Computing System, Dorodnicyn Computing Center of RAS, Moscow, Russia
Appl Compos Mater
to improve both damping and stiffness properties of composite structure have been proposed micromechanically or macromechanically [3, 4]. Nevertheless, these optimizations are still based on ‘traditional’ concepts and materials [5]. In the era of nanotechnology, multifunctional composites incorporating nano-sized materials or structures such as carbon nanotubes, nanowires, and thin coating film or layer, are now being studied extensively to create strong, lightweight, and shock resistant advanced structures [6–9]. Here, we shall concern ourselves with traditional way of optimizing dynamic properties of composite material but the solution will be addressed from the nanotechnology perspective where an ultra thin coating layer of vis
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