Finite element simulation of polygonal rectangular square composite cotton reinforced polyester composites / Akbar Othman and Al Emran Ismail

In this paper the collapse behaviors of composite cotton fiber reinforced polyester were developed and analyzed. The crush studies with various regular polygonal cross-sections were numerically investigated under axial compression using the finite element method program code of LS-DY@A version 3.71. The effects of wall
thickness and velocity rate of impact on the crush behavior were also investigated. Crush strength increases as
the number of corners of the cross-section increases, though it was almost saturated for the number of corners
beyond 10. Cross-sectional shapes with less than five corners should be avoided to take a regulated collapse
pattern. The effect of number of polygonal corners on enhancement in crush strength becomes more prominent
as the initial wall thickness decreases. The validation finite element modeling was carried out with experimental
analysis technique to ensure that the data results from numerical analysis will provide sufficient accuracy.