45433 2020 eng 101 113 1 29 article Taylor & Francis London The Japan Society for Composite Materials 1 -- -- -- The longitudinal and transverse strength of three unidirectional thermoplastic prepreg systems: carbon fiber/polypropylene (CF/PP), polyamide 6 (CF/PA6), and polyphenylene sulfide (CF/PPS) are studied and analytical formulas are proposed for the estimation of matrix and fiber/matrix interface properties from composites properties. Since the matrices are semi-crystalline thermoplastics, the influence of cooling rate on the strength is statistically evaluated. While the 0° tensile strength is found to be independent of the cooling rate, the 90° tensile strength is strongly influenced by the matrix type and cooling rate. The matrix modulus increases as the cooling rate is decreased; the degree of crystallinity also increases. The matrix residual stress, interfacial shear strength, and mode II interlaminar fracture toughness are also found to depend on the cooling rate, with the trends different for different matrices. Advanced composite materials 0924-3046 1568-5519 10.1080/09243046.2019.1651083 Die originale japanische Version des Artikels erschien in: Journal of the Japan Society for Composite Materials, Jg. 44, Nr. 4 (2018), S. 123-128. - The original Japanese version of the article was published in: Journal of the Japan Society for Composite Materials, vol. 44, no. 4 (2018), pp. 123-128. 29.08.2019 I. Taketa Gerhard Kalinka L. Gorbatikh S. Lomov I. Verpoest eng uncontrolled Matrix residual stress eng uncontrolled Thermoplastic prepreg eng uncontrolled Unidirectional composites eng uncontrolled Cooling rate eng uncontrolled Interfacial strength Ingenieurwissenschaften und zugeordnete Tätigkeiten 5 Werkstofftechnik 5.3 Polymere Verbundwerkstoffe Material Verlagsliteratur Datei im Netzwerk der BAM verfügbar ("Closed Access")