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Composite modeling
for the effective elastic properties of semicrystalline
polymers
Said Ahzi, Nadia Bahlouli, Ahmed Makradi and Salim Belouettar |
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Vol. 2 (2007), No. 1, 1–21
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Abstract |
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It is established that upper and lower bounds predict results far apart from each other for the effective elastic properties of semicrystalline polymers such as polyethylene. This is manly due to the high anisotropy of the elastic properties of the crystals. Composite modeling has been used to predict intermediate results between the bounds. Here, we show the details of composite modeling based on a two phase inclusion (crystalline lamella and amorphous domain) as the local representative element of a semicrystalline polymer. Three approaches, two composite bounds, and a composite self-consistent model, are used to compute the overall elastic properties. Details of the development of these approaches are given in this paper. We find good agreement between results from these approaches and experimental results for polyethylene. |
Keywords
effective elastic properties, crystalline polymers,
homogenization, micromechanics, composite averaging schemes
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Milestones
Received: 11 December 2005
Revised: 9 June 2006
Accepted: 28 June 2006
Published: 1 March 2007
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Authors |
| Said Ahzi | |
| University Louis Pasteur Institute of Fluid and Solid Mechanics UMR 7507 2 Rue Boussingault 67000 Strasbourg France |
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| Nadia Bahlouli | |
| University Louis Pasteur Institute of Fluid and Solid Mechanics UMR 7507 2 Rue Boussingault 67000 Strasbourg France |
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| Ahmed Makradi | |
| University Louis Pasteur Institute of Fluid and Solid Mechanics UMR 7507 2 Rue Boussingault 67000 Strasbourg France |
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| Salim Belouettar | |
| LTI Research Center Henry Tudor 70 Rue de Luxembourg L-4221 Esch-sur-Alzette Luxembourg |
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