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Polymers 2018, 10(6), 661;

Tensile Creep Behavior of Quasi-Unidirectional E-Glass Fabric Reinforced Polypropylene Composite

Institute of Polymer Technology, University Erlangen-Nuremberg, 91054 Erlangen, Germany
State Key Laboratory of High Performance and Complex Manufacturing, Central South University, Lushan South Road 932, 410083 Changsha, China
Author to whom correspondence should be addressed.
Received: 29 May 2018 / Revised: 9 June 2018 / Accepted: 10 June 2018 / Published: 13 June 2018
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The present work addressed the creep behavior of quasi-unidirectional E-glass fabric reinforced polypropylene composites under off-axis tensile loading. A series of creep tests were performed on the composite at three different loading stress levels. The creep response of off-axis samples of quasi-unidirectional composites under a constant loading level can be clearly observed. A phenomenological viscoplasticity model was built for describing the creep behavior of the composite. To improve the accuracy of prediction, cyclic loading-unloading tests were adopted to determine the material constants in the model. The predicted results in terms of the strains after a load over a period of time were found to be satisfactory, compared with the experimental results. In addition, same failure mechanism was found in off-axis samples under quasi-static and creep loading cases. View Full-Text
Keywords: tensile creep; thermoplastic composites; viscoplasticity model tensile creep; thermoplastic composites; viscoplasticity model

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Zhai, Z.; Jiang, B.; Drummer, D. Tensile Creep Behavior of Quasi-Unidirectional E-Glass Fabric Reinforced Polypropylene Composite. Polymers 2018, 10, 661.

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