31th Congress of the International Council of the Aeronautical Sciences

04.1 - Material Issues, Fatigue and Damage Tolerance

NUMERICAL INVESTIGATION OF INFLUENCE OF INITIAL DAMAGES ON STRENGTH PARAMETERS OF CFRP

E. Dubovikov╣, V. Fomin╣, D. Fomin╣, V. Notkin╣, N. Perchits╣, G. Vodovozov╣; ╣Central Aerohydrodynamic Institute (TsAGI), Russia

The work is devoted to development of structural numerical model of CFRP, analysis of the resin stress/strain state and investigation of influence of initial CFRP fracture on its properties. The development of micro cracks is investigated, and the dependency of strength parameters of CFRP on the micro cracks sizes is obtained.


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