Next Article in Journal
Toward Variability Characterization and Statistic Models’ Constitution for the Prediction of Exponentially Graded Plates’ Static Response
Next Article in Special Issue
Bending, Free Vibration, and Buckling Analysis of Functionally Graded Porous Micro-Plates Using a General Third-Order Plate Theory
Previous Article in Journal
Axial Response of Concrete-Filled FRP Tube (CFFT) Columns with Internal Bars
Previous Article in Special Issue
Numerical Study of the Mixed-Mode Delamination of Composite Specimens
Article Menu

Export Article

Open AccessArticle

Thermal Buckling Behaviour of Thin and Thick Variable-Stiffness Panels

Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, Via La Masa 34, 20156 Milano, Italy
*
Author to whom correspondence should be addressed.
J. Compos. Sci. 2018, 2(4), 58; https://doi.org/10.3390/jcs2040058
Received: 3 September 2018 / Revised: 28 September 2018 / Accepted: 4 October 2018 / Published: 7 October 2018
(This article belongs to the Special Issue Mechanics of Innovative Materials in Engineering Applications)
  |  
PDF [1855 KB, uploaded 31 October 2018]
  |  

Abstract

The possibility of designing composite panels with non-uniform stiffness properties offers a chance for achieving highly-efficient configurations. This is particularly true for buckling-prone structures, whose response can be shaped through a proper distribution of the membrane and bending stiffnesses. The thermal buckling behaviour of composite panels is among the aspects that could largely benefit from the adoption of a variable-stiffness design, but, in spite of that, it has rarely been addressed. The paper illustrates a semi-analytical approach for evaluating the thermal buckling response of variable-stiffness plates (VSP) by considering different boundary conditions. The formulation relies upon the method of Ritz and a variable-kinematic approach, leading to a computationally efficient implementation, which is particularly useful for exploring the larger design spaces, typical of variable-stiffness configurations. Due to the possibility of choosing the underlying kinematic approach as an input of the analysis, the formulation is not restricted to thin plates, but is suitable for analyzing the response of thick plates as well. Novel results are derived, which can be useful for benchmarking purposes and for gathering insight into the mechanical behaviour of variable-stiffness plates. Furthermore, the importance of transverse shear flexibility is illustrated with respect to the boundary conditions as well as the degree of steering of the fibers. View Full-Text
Keywords: thermal buckling; variable-stiffness plates; composites; Ritz method thermal buckling; variable-stiffness plates; composites; Ritz method
Figures

Figure 1

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 (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Vescovini, R.; Dozio, L. Thermal Buckling Behaviour of Thin and Thick Variable-Stiffness Panels. J. Compos. Sci. 2018, 2, 58.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
J. Compos. Sci. EISSN 2504-477X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top