Contribution to the Study of the Breaking Behavior of Starch-Based Composite Films: Numerical and Mathematical Analysis of the Effects of Reinforcement and Temperature
Current Journal of Applied Science and Technology · pp. 35–45 · Published 23 Jan 2024
10.9734/cjast/2024/v43i24347Abstract
Our previous article focused on the analysis of crack propagation in a composite film based on cassava starch reinforced with coconut fibers. The price parameters taken into account in this study are the size and position of the crack, and the applied load. The aim of this work is to analyze the breaking behavior of said material. To do this, the effects of variations in temperature and fibers, key factors influencing the thermomechanical behavior of the film, will be illustrated. We will adopt an approach based on the displacement of the crack tip using the extended finite element method (XFEM). A calculation by numerical simulation using the Cast3M finite element calculation code will be carried out based on an established behavioral law. This phase will be followed by a mathematical study in order to establish a homogenized analytical model representative of the breaking behavior of the composite. The results obtained in the two cases are very consistent. The reinforcements increase the resistance to rupture while a rise in temperature promotes deterioration of the material. They make it possible to describe and predict the breaking behavior of the composite films subject to this study.
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