Material Characteristics Investigation of Composite Porous Beamwith Axial Diffusion Using FDM and Taguchi DOE

This paper presents a model for fluid-saturated composite porous beam with axial diffusion. Classicallamination theory is utilized to modify governing equations of a saturated poroelastic beam. Beam is dominated by axial diffusion by the virtue of material microgeometry. Derived equations are time dependent due to the nature ofsaturated porous material. In quasi-static case, equations are solved employing finite difference method. Time derivatives are handled using an implicit scheme that utilizes Crank-Nicolson method. Numerical results are comparedwith FEM simulations carried out by COMSOL Multiphysics and a good agreement is achieved. Finally, effects of different material properties are captured using Taguchi design of experiment.

Material Characteristics Investigation of Composite Porous Beamwith Axial Diffusion Using FDM and Taguchi DOE Keywords:

Classical lamination theory , FEM , Poroelastic beam , Taguchi DOE