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Determining the strength of composite integrated joints using numerical simulations

Citace:
SEDLÁČEK, F., LAŠOVÁ, V. Determining the strength of composite integrated joints using numerical simulations. In Proceedings of the 28th DAAAM International Symposium. Vienna: DAAAM International, 2017. s. 545-554. ISBN: 978-3-902734-11-2 , ISSN: 1726-9679
Druh: STAŤ VE SBORNÍKU
Jazyk publikace: eng
Anglický název: Determining the strength of composite integrated joints using numerical simulations
Rok vydání: 2017
Místo konání: Vienna
Název zdroje: DAAAM International
Autoři: Ing. František Sedláček , Doc. Ing. Václava Lašová Ph.D.
Abstrakt EN: The paper deals with determining the strength of integrated high performance composite joints using numerical simulations. The solution of integrated joints made from composite materials is very problematic because it involves multi-axial stress. Wrapping loops were chosen as simplified specimens for validation of the numerical simulations and experimental tests. The wrapping loops were fabricated from unidirectional E-Glass roving in combination with an epoxy matrix. The experimental tensile tests were carried out on a Zwick/Roell Z050 machine. A ply-based FEM model was used for structural analysis. Four failure criteria for composite materials were used to determine the strength of the loops. There were favourable comparisons between the numerical simulations and the experimental tests, especially when using the Tsai-Wu failure criterion.
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