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      High temperature compressive behavior of three-dimensional five-directional braided composites Translated title: Hochtemperatur-Kompressionsverhalten von dreidimensional in fünf Richtungen geflochtenen Kompositen

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          Abstract

          An experimental study was performed to investigate the high temperature compressive properties and failure mechanism of three-dimensional (3D) five-directional braided composites. The compression tests of 3D braided composites were conducted at six different temperatures. The failure modes, stress-strain curves, compressive modulus and strength at high temperature were analyzed and compared with those at room temperature. The results showed that temperature has a visible impact on these parameters. The 3D braided composites failed due to shear fracture, and the stress-strain curves exhibited obvious linear elasticity and a brittle failure feature at 20 and 50 °C, while the failure was characterized by fiber/matrix interface debonding, fiber bundles loosening and by outward expansion, and the stress-strain curves exhibited an obvious non-linear trend and a plastic failure feature at 70, 90, 110 and 130 °C. The compressive modulus and strength decreased as temperature increased. The compressive modulus and strength decreased by 92.9 % and 94.1 % as the temperature increased from 20 °C to 130 °C, which was mainly due to the degradation of the matrix properties and fiber/matrix interface properties at high temperature.

          Kurzfassung

          Die Hochtemperatur-Kompressionseigenschaften und der Versagensmechanismus von dreidimensional und in fünf Richtungen geflochtenen Kompositen wurden für diesen Beitrag experimentell untersucht. Die Kompressionstests der 3D geflochtenen Komposite wurden bei sechs verschiedenen Temperaturen durchgeführt. Es wurden die Versagensmodi, die Spannungs-Dehnungs-Kurven, der Druckmodul und die Festigkeit bei hohen Temperaturen analysiert und mit denen bei Raumtemperatur verglichen. Die Ergebnisse zeigen, dass die Temperatur einen sichtbaren Einfluss auf diese Werkstoffeigenschaften hat. Die dreidimensional geflochtenen Komposite versagten durch Schubspannungsbruch, und die Spannungs-Dehnungs-Kurven zeigten eine lineare Elastizität und ein sprödes Versagen bei 20 und 50 °C, während das Versagen durch eine Trennung der Faser-Matrix-Grenzfläche, eine Lockerung der Faserbündel und auswärts gerichtete Verlängerung charakterisiert wurde und die Spannungs-Dehnungs-Kurven einen sichtbaren nichtlinearen Trend und Merkmale plastischen Versagens bei 70, 90, 110 und 130 °C aufwiesen. Der Druckmodul und die Festigkeit nahmen um 92.9 % und 94.1 % ab, als die Temperatur von 20 auf 130 °C anstieg, was hauptsächlich auf die Degradation der Matrixeigenschaften und der Eigenschaften der Faser-Matrix-Grenzfläche bei hohen Temperaturen zurückzuführen war.

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          Progressive damage and nonlinear analysis of 3D four-directional braided composites under unidirectional tension

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            2D braided composites: A review for stiffness critical applications

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              Investigation on the compressive properties of the three dimensional four-directional braided composites

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                Author and article information

                Journal
                mp
                Materials Testing
                Carl Hanser Verlag
                0025-5300
                2195-8572
                16 July 2018
                : 60
                : 7-8
                : 772-776
                Affiliations
                1 Wuhan, P. R. China
                Author notes
                [* ] Correspondence Address, Jie Mei, School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China, E-mail: meijie9407@ 123456163.com

                Dr. Jiayi Liu, born in 1985, works as Lecturer at the School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan, PR China. He received his PhD degree from Harbin Institute of Technology, Harbin, PR China in 2013. His research interest focuses on composite lightweight structure.

                Junmeng Zhou, born in 1995, is a master's student of Design and Construction of Naval Architecture and Ocean Structure at the School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan, PR China. He received his Bachelor's degree from Huazhong University of Science and Technology, Wuhan, PR China in 2017. His research interest focuses on composite lightweight structure.

                Yu Wang, born in 1994, is a master's student of Naval Architecture and Ocean Engineering at the School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan, PR China. She received her Bachelor's degree from Huazhong University of Science and Technology, Wuhan, PR China in 2016. Her research interest focuses on composite lightweight structure.

                Jie Mei, born in 1994, is a master's student of Design and Construction of Naval Architecture and Ocean Structure at the School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan, PR China. He received his Bachelor's degree from Hohai University, Nanjing, PR China in 2016. His research interest focuses on composite lightweight structure.

                Jialin Liu, born in 1992, is a master's student of Design and Construction of Naval Architecture and Ocean Structure at the School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan, PR China. He received his Bachelor's degree from Huazhong University of Science and Technology, Wuhan, PR China in (2016. His research interest focuses on composite lightweight structure.

                Article
                MP111212
                10.3139/120.111212
                597d7889-1d98-4c25-aab7-9b299512bee1
                © 2018, Carl Hanser Verlag, München
                History
                Page count
                References: 21, Pages: 5
                Categories
                Fachbeiträge/Technical Contributions

                Materials technology,Materials characterization,Materials science
                Materials technology, Materials characterization, Materials science

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