Header menu link for other important links
Finite element modeling of natural fiber-based hybrid composites
A. Karakoti, P. Tripathy, V.R. Kar, K. Jayakrishnan, , M. Manikandan
Published in Elsevier
Pages: 1 - 18
Hybrid composites have distinctive characteristics that can be utilized in various structures and/or structural components without compromising their structural performance and durability. However, use of natural fibers in composites makes the structure more economical as well as eco-friendly. In this chapter, natural fibers and their classifications are discussed, followed by the hybrid composite and its material modeling. Continuous, numerical solutions of natural fiber-based hybrid composites are also demonstrated through appropriate finite element steps. For computational purposes, two different natural fibers, i.e., jute and flax, and epoxy as matrix material are used to different extents. The overall material properties of hybrid composites are evaluated through a simple rule of hybrid mixture and the modified Halpin-Tsai scheme. A higher-order mathematical model is developed in a finite element framework to obtain the flexural responses of hybrid composites. The displacement field is based on higher-order shear deformation theory with nine degrees of freedom. A nine-noded isoparametric Lagrangian element is utilized to discretize the hybrid composite panel. The governing equation of a hybrid composite panel subjected to uniform pressure is achieved through the minimum total potential energy principle. The desired responses of hybrid composites are obtained through customized MATLAB code. Influences of different parameters such as geometrical (side-to-thickness ratio, side-to-length ratio), volume fractions, number of layers, and support conditions on the flexural responses of a natural fiber-based hybrid composite panel are exemplified and discussed in detail through appropriate illustrations. It is found that fully clamped and large side-to-length ratio composite panels exhibit minimum deflection under uniform pressure. However, the addition of flax content enhances the overall stiffness and strength of a hybrid composite. © 2019 Elsevier Ltd. All rights reserved.
About the journal
JournalData powered by TypesetModelling of Damage Processes in Biocomposites, Fibre-Reinforced Composites and Hybrid Composites
PublisherData powered by TypesetElsevier