Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Dynamic instability of variable angle tow composite plates with delamination

Chen, X., Nie, G. and Wu, Zhangming ORCID: https://orcid.org/0000-0001-7100-3282 2018. Dynamic instability of variable angle tow composite plates with delamination. Composite Structures 187 , pp. 294-307. 10.1016/j.compstruct.2017.12.042

[thumbnail of CS-Dynamic Instability.pdf]
Preview
PDF - Accepted Post-Print Version
Download (1MB) | Preview

Abstract

In this paper, the dynamic instability of variable angle tow (VAT) plates with a single rectangular delamination is studied using an analytical model. The analytical model is derived from the principle of potential energy based on the classical laminated plate theory. Both global and local behavior of delaminated VAT plates in the dynamic instability analysis are accurately captured by the use of multiple Legendre polynomial series. The equations for the motion in dynamic instability problem are derived using Hamilton’s principle. The dynamic instability regions are determined from the resulting Mathieu differential equations, which are solved using Bolotin’s approach. To validate the proposed analytical model, both critical buckling loads and natural frequencies of delaminated VAT plates are evaluated and compared with FEM results. The influence of delamination on the buckling load, natural frequency and dynamic instability region (DIR) of delaminated VAT plates is examined by numerical examples. A parametric study is subsequently carried out to analyze the effect of linearly varying fibre orientation angles on the dynamic instability response of delaminated VAT plates. Finally, the mechanism of applying variable angle tows to improve the dynamic stability performance of delaminated composite plates is studied.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Publisher: Elsevier
Date of First Compliant Deposit: 3 January 2018
Date of Acceptance: 15 December 2017
Last Modified: 07 Nov 2023 04:28
URI: https://orca.cardiff.ac.uk/id/eprint/107841

Citation Data

Cited 14 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item

Downloads

Downloads per month over past year

View more statistics