STRESS-STRAIN ANALYSIS OF ORIENTED POLYETHYLENE

POLYMER

卷:34

Article

GOVAERT, LE ; BASTIAANSEN, CWM ; LEBLANS, PJR

关键词: POLYETHYLENE;    FIBERS;    CREEP;    STRESS RELAXATION;    DYNAMIC BEHAVIOR;    MODELING;   

DOI  :  10.1016/0032-3861(93)90546-M

来源: Elsevier

【 摘 要 】

The time-dependent deformation behaviour of a commercial grade of high-performance polyethylene fibres (Dyneema SK66), was studied using static and dynamic mechanical testing. A mathematical model is proposed, where the total deformation of the fibre is regarded as being composed of a stress-linear delayed elastic component and a non-linear plastic flow contribution. The thermo-rheological characteristics of the delayed elastic contribution are obtained using dynamic mechanical thermal analysis. The non-linear plastic flow component is characterized separately using long-term creep experiments. Model predictions of stress relaxation and tensile experiments are in good agreement with the experimental data.

【 授权许可】

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