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
收藏
页码：164 / 174
页数：11
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