The impact of mesoscale textile architecture on the structural damping in composite structures

Thierry, V.; Chronopoulos, D.

Abstract

In this article, a method allowing for prediction of the effective structural damping given the mesoscale architecture of a composite is presented. The method enables a fast and accurate calculation of the loss factor as a function of the direction of the wave propagation and the frequency in any periodic textile composite. The scheme combines two reduction methods, the first being the wave and finite element method that employs periodic structure theory to reduce the size of the problem by allowing for modelling only a unit cell of a periodic structure, while the second reduction approach is a mode-based component mode synthesis that reduces the size of the dynamic stiffness matrix of a unit cell. The exhibited methodology allows for structural damping prediction and optimisation through judicious design of the textile architecture. Numerical examples several complex architectures are exhibited.

Citation

Thierry, V., & Chronopoulos, D. (2020). The impact of mesoscale textile architecture on the structural damping in composite structures. Composite Structures, 249, https://doi.org/10.1016/j.compstruct.2020.112475

• Journal Article Type: Article
• Acceptance Date: May 14, 2020
• Online Publication Date: May 29, 2020
• Publication Date: 2020-10
• Deposit Date: Jul 1, 2020
• Publicly Available Date: May 30, 2021
• Journal: Composite Structures
• Print ISSN: 0263-8223
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 249
• Article Number: 112475
• DOI: https://doi.org/10.1016/j.compstruct.2020.112475
• Keywords: Civil and Structural Engineering; Ceramics and Composites
• Public URL: https://nottingham-repository.worktribe.com/output/4742832
• Additional Information: This article is maintained by: Elsevier; Article Title: The impact of mesoscale textile architecture on the structural damping in composite structures; Journal Title: Composite Structures; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.compstruct.2020.112475; Content Type: article; Copyright: Crown Copyright © 2020 Published by Elsevier Ltd. All rights reserved.