CREEP RESPONSE ANALYSIS OF QUASI - ISOTROPIC BAMBOO FIBRE REINFORCED COMPOSITE STRUCTURES

Abstract

This study used experimental method and analytical tools of engineering as mixed method to model Bamboo fibre reinforced polyester resin matrix composites under creep failure mode. Multiple linear regression and the general Power law equations were employed to model the bamboo fibre composites creep limit responses, while the creep strains and moduli were modeled graphically from where interpolations can be made. The creep limit estimated with analytical tools correlated with the experimental data. The creep modulus was found to vary nonlinearly with temperature and time applied, while the creep limit was found to be time and temperature dependent. The established mechanical properties of creep limit, creep modulus, and strain, for Bamboo fibre composites at temperatures 30°C.50 °C and 100°C were evaluated and coordinated as (8.6775 Mpa, 3.7728 GPa, 0.0023), (8.6667 MPa, 8.6667 GPa, 0.001) and (8.6645 MPa, 14.439 GPa, 0.0006) respectively. The after-effects of increasing temperatures on creep properties of Bamboo fibre composites include reduction of strength, stiffness and toughness of composites as well as increased initial modulus of composites following creep modulus reduction.