Interlaminar fatigue crack propagation in continuous glass fiber/polypropylene composites |
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| Affiliation: | 1. Industrial Materials Institute, National Research Council Canada, 75 de Mortagne, Boucherville J4B 6Y4, Canada;2. Département de génie physique et de génie des matériaux, École Polytechnique, Succ. Centre-ville, H4A 3A7, Montréal, C.P. 6079, Canada;1. Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. Institute for Frontier Materials and the ARC Centre of Excellence for Electromaterials Science, Deakin University, Geelong, VIC 3216, Australia;4. Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China;1. Young Researchers and Elite Club, Science and Research Branch, Islamic Azad University, Tehran, Iran;2. Faculty of Pharmacy, Departments of Pharmaceutical Technology and Biopharmaceutics, Jagiellonian University, Krakow, Poland;3. Memorial University of Newfoundland, Canada;4. Department of Electrical Engineering, Faculty of Engineering, Kasetsart University (KU), Bangkok, Thailand;1. School of Polymers and High Performance Materials, University of Southern Mississippi, Hattiesburg, MS 39406, United States;2. Renewable Energy School, North China Electric Power University, Beijing, China;3. Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106, United States |
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| Abstract: | The mode II interlaminar fatigue crack propagation behavior of unidirectional continuous glass fiber (GF) composites with a polypropylene (PP) matrix obtained under three different molding conditions has been studied with the use of the end-notch flexure (ENF) geometry. The microstructure and mechanical performance, especially the interlaminar fatigue crack propagation, are strongly affected by the molding conditions. Comparative results reveal a major influence of the fiber–matrix interface and the matrix morphology on the crack propagation resistance. The distribution of the ductile amorphous PP phase in the semi-crystalline PP matrix appears to be the controlling parameter determining the fatigue crack propagation resistance of the PP/GF composite. Fractographic observations clearly showed the role of this phase. |
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