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Structural Engineering and Mechanics Volume 64, Number 3, November10 2017 , pages 287-292 DOI: https://doi.org/10.12989/sem.2017.64.3.287 |
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Flexural fatigue modeling of short fibers/epoxy composites |
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M.M. Shokrieh, A.R. Haghighatkhah and M. Esmkhan
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| Abstract | ||
| In the present research, an available flexural stiffness degradation model was modified and a new comprehensive model called \"X-NFSD\" was developed. The X-NFSD model is capable of predicting the flexural stiffness degradation of composite specimen at different states of stresses and at room temperature. The model was verified by means of different experimental data for chopped strand mat/epoxy composites under displacement controlled bending loading condition at different displacements and states of stresses. The obtained results provided by the present model are impressively in very good agreement with the experimental data and the mean value of error of 5.4% was achieved. | ||
| Key Words | ||
| flexural fatigue; displacement controlled loading; chopped strand mat/epoxy composites; degradation; composites | ||
| Address | ||
| M.M. Shokrieh, A.R. Haghighatkhah and M. Esmkhan : Composites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology, Narmak, 16846-13114 Tehran, Iran | ||