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2005, iss. 36, pp. 123-134
Low-temperature tension properties of glass-epoxy composite materials
aUniversity of Belgrade, Faculty of Technology and Metallurgy
bUniversity of Belgrade, Faculty of Mechanical Engineering

emailslavisa@tmf.bg.ac.yu
Keywords: glass woven-epoxy composite material; tension test; low temperature test; micromechanical analysis
Abstract
The aim of this paper was to present the determination of tensile strength Rm and modulus of elasticity Et of glass-epoxy composites at two different temperatures (at room temperature t=20°C, and at t =-50°C). Standard mechanical testing was carried out on glass woven-epoxy composite material with different structures (two specific weights of reinforcement, 210 g/m2 and 550 g/m2) and orientations (0°/90° and ±45°). Micromechanical analysis of failure was performed on a stereo microscope and SEM in order to determine real models and mechanisms of crack.
References
*** (1980) ASTM D 3039 76, Standard test method for tensile properties of fiber-resin com posites. in: Annual Book of ASTM Standards, 36 734-739
Brady, M.W. (1998) An investigation of the tensile strength and stiffness of unidirectional polymer-matrix, carbon-fiber composites under the influence of elevated temperatures. Blacksburg: Virginia University, PhD Thesis
Celine, A.M. (1999) A systematic stiffness-temperature model for polymers and applications to the prediction of composite behavior. Blacksburg: Virginia University, PhD Thesis
Hadud, M. (2003) High and low temperature static mechanical testing of glass-epoxy composite materials. Belgrade: Faculty of Technology and Metallurgy, MSc Thesis
Howard, C.M., Hollaway, L. (1987) The characterization of the nonlinear viscoelastic properties of a randomly oriented fiber/matrix composite. Composites, 18(4), 317-23
Krivokuća-Stamenović, M. (1999) Uticaj strukture na statička i dinamička svojstva laminarnih kompozita stakleno vlakno-polimer. Belgrade: Faculty of Technology and Metallurgy, MSc Thesis
Tsotsis, T.K., Keller, S. (2001) Aging of polymeric composite specimens for 5000 hours at elevated pressure and temperature. Composites Science and Technology, 61 75-86
 

About

article language: English
document type: Original Scientific Paper
DOI: 10.2298/APT0536123P
published in SCIndeks: 02/06/2007

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