A Modified Halpin-Tsai Model for Estimating the Modulus of Natural Fiber Reinforced Composites
Journal Title: International Journal of Engineering and Science Invention - Year 2018, Vol 7, Issue 5
Abstract
The modulus of composites formed from three selected natural fiber sources (Empty Plantain Bunch Fiber, Empty Palm Bunch Fiber and Rattan Palm Fiber) - mercerized at optimum conditions - with two selected thermosetting resins (Polyester and Epoxy resins) has been studied. The modulus was obtained as the slope of the linear part of the stress-strain curve. Selected micromechanics models were used for composite modulus prediction and their closeness to the experimental value was studied using the R2 obtained from regression of the two data points. The micromechanics models studied did not adequately model the Composite behavior, a new micromechanics model obtained by modifying the Halpin-tsai equation which gave a better fit was proposed in this study. The modified model presented in this work is recommended for prediction of composite modulus for natural fiber based composites especially after further improvement by adjusting the model parameters: A, a and B to make them composite specific, using data from experiments.
Authors and Affiliations
Osoka E. C. , Onukwuli O. D.
Keywords
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