Mesoscopic Modeling of Deformation Behavior of Semi-Crystalline Polymer

Abstract:

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In present study, we clarify the micro- to mesoscopic deformation behavior of semicrystalline polymer unit cell by using large deformation finite element homogenization method. Crystalline plasticity theory with penalty method for enforcing the inextensibility of chain direction and nonaffine molecular chain network theory were applied to the representation of the deformation behavior of crystalline and amorphous phases, respectively, in composite microstructure of semicrystalline polymer. The different directional tension and compression are applied to the 2- dimensional plane strain semi-crystalline unit cell model. A series of computational simulation clarified highly anisotropic deformation behavior of microstructure of semi-crystalline polymer, which is caused by rotation of chain direction and lamella interface, and manifests as a substantial hardening/softening. This anisotropy for tensile deformation is higher than that for compressive deformation.

Info:

Periodical:

Key Engineering Materials (Volumes 297-300)

Edited by:

Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim

Pages:

2915-2921

DOI:

10.4028/www.scientific.net/KEM.297-300.2915

Citation:

M. Uchida and Y. Tomita, "Mesoscopic Modeling of Deformation Behavior of Semi-Crystalline Polymer ", Key Engineering Materials, Vols. 297-300, pp. 2915-2921, 2005

Online since:

November 2005

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Price:

$35.00

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