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Medientyp: E-Artikel Titel: Fatigue performance of injection‐molded short e‐glass fiber reinforced polyamide‐6,6. II. Effects of melt temperature and hold pressure Beteiligte: Zhou, Yuanxin; Mallick, P. K. Erschienen: Wiley, 2011 Erschienen in: Polymer Composites Sprache: Englisch DOI: 10.1002/pc.21045 ISSN: 0272-8397; 1548-0569 Schlagwörter: Materials Chemistry ; Polymers and Plastics ; General Chemistry ; Ceramics and Composites Entstehung: Anmerkungen: Beschreibung: <jats:title>Abstract</jats:title><jats:p>Tensile and fatigue properties of an injection molded short E‐glass fiber reinforced polyamide‐6,6 have been studied as a function of two key injection molding parameters, namely melt temperature and hold pressure. It was observed that tensile and fatigue strengths of specimens normal to the flow direction were lower than that in the flow direction, indicating inherent anisotropy caused by injection molding. Tensile and fatigue strengths of specimens with weld line were significantly lower than that without weld lines. For specimens in the flow direction, normal to the flow direction and with weld line, tensile strength and fatigue strength increased with increasing melt temperature as well as increasing hold pressure. The effect of specimen orientation on the tensile and fatigue strengths is explained in terms of the difference in fiber orientation and skin‐core morphology of the specimens. POLYM. COMPOS., 2011. © 2010 Society of Plastics Engineers.</jats:p>