The effect of annealing on the elastoplastic response of isotactic polypropylene

Aleksey D. Drozdov; Jesper De C. Christiansen

doi:10.1016/S0014-3057(02)00189-1

The effect of annealing on the elastoplastic response of isotactic polypropylene

Aleksey D. Drozdov, Jesper De C. Christiansen

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

Four series of tensile loading-unloading tests are performed on isotactic polypropylene in the sub-yield domain of deformations at room temperature. In the first series, injection-molded specimens are used as produced, whereas in the other series the samples are annealed for 24 h at 120, 140 and 160 °C, which covers the low-temperature region and an initial part of the high-temperature region of annealing temperatures. A constitutive model is developed for the elastoplastic behavior of a semicrystalline polymer. The stress-strain relations are determined by five adjustable parameters that are found by fitting the experimental data. The effect of annealing is analyzed on the material constants.

Original language	English
Pages (from-to)	21-31
Number of pages	11
Journal	European Polymer Journal
Volume	39
Issue number	1
DOIs	https://doi.org/10.1016/S0014-3057(02)00189-1
State	Published - 1 Jan 2003
Externally published	Yes

Keywords

Annealing
Cyclic loading
Elastoplasticity
Isotactic polypropylene
Yielding

ASJC Scopus subject areas

General Physics and Astronomy
Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/S0014-3057(02)00189-1

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abstract = "Four series of tensile loading-unloading tests are performed on isotactic polypropylene in the sub-yield domain of deformations at room temperature. In the first series, injection-molded specimens are used as produced, whereas in the other series the samples are annealed for 24 h at 120, 140 and 160 °C, which covers the low-temperature region and an initial part of the high-temperature region of annealing temperatures. A constitutive model is developed for the elastoplastic behavior of a semicrystalline polymer. The stress-strain relations are determined by five adjustable parameters that are found by fitting the experimental data. The effect of annealing is analyzed on the material constants.",

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AU - Drozdov, Aleksey D.

AU - Christiansen, Jesper De C.

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N2 - Four series of tensile loading-unloading tests are performed on isotactic polypropylene in the sub-yield domain of deformations at room temperature. In the first series, injection-molded specimens are used as produced, whereas in the other series the samples are annealed for 24 h at 120, 140 and 160 °C, which covers the low-temperature region and an initial part of the high-temperature region of annealing temperatures. A constitutive model is developed for the elastoplastic behavior of a semicrystalline polymer. The stress-strain relations are determined by five adjustable parameters that are found by fitting the experimental data. The effect of annealing is analyzed on the material constants.

AB - Four series of tensile loading-unloading tests are performed on isotactic polypropylene in the sub-yield domain of deformations at room temperature. In the first series, injection-molded specimens are used as produced, whereas in the other series the samples are annealed for 24 h at 120, 140 and 160 °C, which covers the low-temperature region and an initial part of the high-temperature region of annealing temperatures. A constitutive model is developed for the elastoplastic behavior of a semicrystalline polymer. The stress-strain relations are determined by five adjustable parameters that are found by fitting the experimental data. The effect of annealing is analyzed on the material constants.

KW - Annealing

KW - Cyclic loading

KW - Elastoplasticity

KW - Isotactic polypropylene

KW - Yielding

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JO - European Polymer Journal

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The effect of annealing on the elastoplastic response of isotactic polypropylene

Abstract

Keywords

ASJC Scopus subject areas

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