A model for the elastoplastic behavior of isotactic poly(propylene) below the yield point

被引：5

作者：

Drozdov, AD ^{[1
]}

Christiansen, JD ^{[1
]}

机构：

[1] Aalborg Univ, Dept Prod, DK-9220 Aalborg, Denmark

来源：

MACROMOLECULAR MATERIALS AND ENGINEERING | 2003年 / 288卷 / 02期

关键词：

computer modeling; cyclic loading; elastoplasticity; microstructure; poly(propylene);

D O I：

10.1002/mame.200390009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Observations are reported on isotactic poly(propylene) (iPP) in a series of tensile loading-unloading tests with a constant strain rate at room temperature. A constitutive model is developed for the elastoplastic behavior of a semicrystalline polymer at isothermal uniaxial deformations with small strains. The stress-strain relations are determined by 5 adjustable parameters which are found by fitting the experimental data. [GRAPHICS] The stress sigma (MPa) versus strain epsilon in a tensile loading-unloading test with the maximum strain epsilon(max) = 0.09. Circles: experimental data. Solid line: results of numerical simulation.

引用

页码：164 / 174

页数：11

共 42 条

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