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Mechanical properties of hybrid composites using finite element method based micromechanics |
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| Affiliation: | 1. Swinburne University of Technology, Faculty of Science, Engineering and Technology, Hawthorn, Melbourne, VIC 3122, Australia;2. School of Astronautics, Harbin Institute of Technology, Harbin, China;3. Department of Mechanical Engineering, University of New Orleans, New Orleans, LA 70148, USA;1. Department of Mechanical and Industrial Engineering, Ryerson University, Toronto, ON, Canada M5B 2K3;2. Department of Aerospace Engineering, Ryerson University, Toronto, ON, Canada M5B 2K3;1. Department of CSEP, University of Michigan, Flint, MI 48205, United States;2. Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, United States |
| Abstract: | A micromechanical analysis of the representative volume element of a unidirectional hybrid composite is performed using finite element method. The fibers are assumed to be circular and packed in a hexagonal array. The effects of volume fractions of the two different fibers used and also their relative locations within the unit cell are studied. Analytical results are obtained for all the elastic constants. Modified Halpin–Tsai equations are proposed for predicting the transverse and shear moduli of hybrid composites. Variability in mechanical properties due to different locations of the two fibers for the same volume fractions was studied. It is found that the variability in elastic constants and longitudinal strength properties was negligible. However, there was significant variability in the transverse strength properties. The results for hybrid composites are compared with single fiber composites. |
| Keywords: | A Hybrid B Mechanical properties C Finite element analysis (FEA) C Micro-mechanics |
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