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ESTIMATION OF FLEXURAL CREEP MODULUS OF SHORT FIBER REINFORCED POLYMERIC COMPOSITE MATERIALS USING (FEM) | ||
| Iraqi journal of mechanical and material engineering | ||
| Article 1, Volume 9, Issue 1, 2009, Pages 90-100 | ||
| Abstract | ||
| The present work is a theoretical macro mechanics study, which concentrates on linear viscoelastic creep behavior of short fiber reinforced polymeric composite materials to estimate their flexural creep modulus at constant room temperature and at a time range of 1 to 10 9 seconds. The loading cases are concentrated and the deformations have been limited with small strains without permanent deformation. A three-parameter model is used as a mathematical viscoelastic model. A finite element program in Quick Basic had been designed to obtain the flexural creep modulus. Halpin-Tsai equation shows an improvement in the modulus values for composite materials reinforced with short fibers in both aligned and random reinforcement through flexural creep estimations. On the other hand, the modified rule of mixtures shows a slight effect of reinforcement on this property. 56789ا: | ||
| Keywords | ||
| Creep Composite materials FEM | ||
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