Finite element prediction of stress transfer in h-BN sheet nanocomposites

Finite element prediction of stress transfer in h-BN sheet nanocomposites PurposeThe purpose of this paper is to implement a micromechanical hybrid finite element approach in order to investigate the stress transfer behavior of composites reinforced with hexagonal boron nitride (h-BN) nanosheets.Design/methodology/approachFor the analysis of the problem, a three-dimensional representative volume element, consisting of three phases, has been used. The reinforcement is modeled discretely using spring elements of specific stiffness while the matrix material is modeled as a continuum medium using solid finite elements. The third phase, the intermediate one, known as the interface, has been simulated by appropriate stiffness variations which define a heterogeneous region affecting the stress transfer characteristics of the nanocomposite.FindingsThe results show a good agreement with corresponding ones from the literature and also the effect of a number of factors is indicated in stress transfer efficiency.Originality/valueThis is the first time that such a modeling is employed in the stress transfer examination of h-BN nanocomposites. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Structural Integrity Emerald Publishing

Finite element prediction of stress transfer in h-BN sheet nanocomposites

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Publisher
Emerald Group Publishing Limited
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
1757-9864
D.O.I.
10.1108/IJSI-02-2017-0014
Publisher site
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Abstract

PurposeThe purpose of this paper is to implement a micromechanical hybrid finite element approach in order to investigate the stress transfer behavior of composites reinforced with hexagonal boron nitride (h-BN) nanosheets.Design/methodology/approachFor the analysis of the problem, a three-dimensional representative volume element, consisting of three phases, has been used. The reinforcement is modeled discretely using spring elements of specific stiffness while the matrix material is modeled as a continuum medium using solid finite elements. The third phase, the intermediate one, known as the interface, has been simulated by appropriate stiffness variations which define a heterogeneous region affecting the stress transfer characteristics of the nanocomposite.FindingsThe results show a good agreement with corresponding ones from the literature and also the effect of a number of factors is indicated in stress transfer efficiency.Originality/valueThis is the first time that such a modeling is employed in the stress transfer examination of h-BN nanocomposites.

Journal

International Journal of Structural IntegrityEmerald Publishing

Published: Feb 5, 2018

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