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Numerical and experimental investigation of a composite ENF-specimen
Schön, J., The Aero. Res. Institute of Sweden, P.O. Box 11021, S-161 11, Bromma, Sweden.
The Aero. Res. Institute of Sweden, P.O. Box 11021, S-161 11, Bromma, Sweden, The Royal Institute of Technology, S-10044, Stockholm, Sweden.
2000 (English)In: Engineering Fracture Mechanics, ISSN 0013-7944, Vol. 65, no 4, 405-433 p.Article in journal (Refereed) Published
Abstract [en]

An extensive numerical and experimental investigation has been carried out regarding fracture mechanical properties for the end notch flexure (ENF) specimens. Static and cyclic properties were studied for different interfaces and for several graphite/epoxy composites. State of the art numerical analyses are described and experimental results are interpreted in terms of usefulness for applications to real structures. The FEM results were compared with beam models and it was found that for the specimen with a zero interface the beam models were acceptable whereas for the specimens with non-zero interface they did show a large error. Numerically, it was found that the effect of friction lowers the energy release rate by a few percent. Experimental results showed that for specimens with non-zero interfaces the delamination crack changed interface. (C) 2000 Elsevier Science Ltd. All rights reserved.

Place, publisher, year, edition, pages
2000. Vol. 65, no 4, 405-433 p.
National Category
Natural Sciences
URN: urn:nbn:se:liu:diva-47684DOI: 10.1016/S0013-7944(99)00137-XOAI: diva2:268580
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2011-01-14

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