Estimation of the flexural creep fracture strength of satin woven CFRP laminates1
Authors: Miyano, Y.1; Kasamori, M.2; Ohtsuka, T.3; Hattori, Y.1
Source: Advanced Composite Materials, Volume 3, Number 4, 1994 , pp. 297-305(9)
Publisher: VSP, an imprint of Brill
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Abstract:
This paper is concerned with the prediction of flexural creep fracture for CFRP laminates consisting of satin woven carbon fibers and a heat-resistant epoxy matrix with glass transition temperature Tg = 236° C. The flexural creep fracture tests were carried out under various stress levels at 50° C which is sufficiently below Tg. The static flexural tests were carried out at various deflection rates and temperatures. The master curve of flexural strength of CFRP was obtained by applying the reciprocation law of time and temperature to these experimental results. Furthermore, the flexural creep fracture of CFRP was estimated by utilizing the linear cumulative damage rule adapted to this master curve. The creep fracture predicted by the method mentioned above agrees fairly well with that measured by creep tests.Keywords: CRFP laminate; heat-resistant epoxy resin; creep fracture; reciprocation law of time and temperature; linear cumulative damage rule
Document Type: Research article
DOI: 10.1163/156855194X00187
Affiliations: 1: Materials System Research Laboratory, Kanazawa Institute of Technology, 7-1, Ohgigaoka, Nonoichi, Kanazawa 921, Japan 2: Industrial Research Institute of Ishikawa, Ro-1, Tomizu, Kanazawa 920-02, Japan 3: Honda R&D Co. Ltd., Tochigi R&D Center, 4630 Shimotakanezawa, Haga, Tochigi 321-33, Japan
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