Thermal buckling analysis and optimization of VAT structures via layer-wise models

Thermal buckling analysis and optimization of VAT structures via layer-wise models

A. Pagani, E. Zappino, R. Masia, F. Bracaglia, E. Carrera

Abstract. The present study investigates the combination of different manufacturing parameters, such as the curvature radius of the single fiber along its path on a symmetric stacking sequence of the Variable Angle Tows composite (VAT). Moreover, the study objective is to individuate the VAT configuration to maximize the critical thermal buckling load of a thermal-loaded composite square plate. Numerical simulations are performed in the Carrera Unified Formulation (CUF) framework, which allows for a high-order two-dimensional (2D) theory based on the Finite Element Method (FEM), enabling the Layer Wise (LW) discretization of the model. The linearized buckling problem is involved in the formulation, and the resolution of the eigenvalue problem leads to finding the thermal buckling critical temperature.

Keywords
Thermal Bucklin, Variable Angle Tow (VAT), Layer Wise (LW), High-Order Structural Theories

Published online 11/1/2023, 4 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: A. Pagani, E. Zappino, R. Masia, F. Bracaglia, E. Carrera, Thermal buckling analysis and optimization of VAT structures via layer-wise models, Materials Research Proceedings, Vol. 37, pp 300-303, 2023

DOI: https://doi.org/10.21741/9781644902813-65

The article was published as article 65 of the book Aeronautics and Astronautics

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

References
[1]. Accurate stress analysis of variable angle tow shells by high-order equivalent-single-layer and layer-wise finite element models. A. R. Sánchez-Majano, R. Azzara, A. Pagani, E. Carrera. S. l.: Materials, 14(21), 2021. https://doi.org/10.3390/ma14216486
[2]. Prebuckling and buckling analysis of variable angle tow plates with general boundary conditions. G. Raju, Z. Wu, B. C. Kim, P. M. Weaver. s.l: Composite Structures.
[3]. Mechanical and thermal buckling loads of rectangular FG plates by using higher-order unified formulation. M. Farrokh, M. Afzali. E. Carrera. s.l.: E. Mechanical of Advanced Materials and Structures, 2019.
[4]. Finite Element Analysis of Structures through Unified Formulation. E. Carrera, M. Cinefra, M. Petrolo, E. Zappino. s.l.: Wiley & Sons, 2014.
[5]. Geometrically nonlinear refined shell theories by Carrera Unified Formulation. B. Wu, A. Pagani, W. Q. Chen, E. Carrera. s.l.: Mechanics of Advanced Materials and Structures, 2021.
[6]. Thermal buckling of composite plates with spatial varying fiber orientation. A. V. Duran, N. A. Fasanella, V. Sundararaghavan, A. M. Waas. s.l.: Composite Structures, 2015.