Calculation Time Analysis of Cylindrical Voxel Model and Finite Difference Method Based Heat Transfer Simulation for Fiber-Reinforced Composite Material
Vol. 57, No. 4, pp. 233-238,
Aug. 2020
10.12772/TSE.2020.57.233
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Abstract
The heat transfer process of fiber-reinforced composite materials depends on
heterogeneous and complex boundary conditions, which limit the use of various conventional
numerical methods. In this study, the finite difference method (FDM) was used to
facilitate efficient numerical analysis. Fibers and fabrics were modeled as a series of cylinders
and then transformed to a bulk of cubic-shaped element, known as “voxels,” to implement
the FDM. Each voxel contained a heat transfer coefficient of the matrix or
reinforcement fiber, considering the fiber orientation angle. Two types of time integration
methods, i.e., the explicit-Euler and implicit–explicit hybrid integration schemes, were
adopted, and their calculation times were compared.
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