Nonlinear damping in vibration of CFRP plates
Olga Kazakova1 , Igor Smolin2 , Iosif Bezmozgiy3
1, 2, 3Tomsk State University, Tomsk, 634050, Russia
1, 3S. P. Korolev Rocket and Space Public Corporation Energia, Korolev, Moscow Area, 141070, Russia
2Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055, Russia
Vibroengineering PROCEDIA, Vol. 8, 2016, p. 372-376.
Received 1 August 2016; accepted 3 September 2016; published 7 October 2016
The article describes research results of damping properties of carbon fiber reinforced plastics (CFRP). The effect of stress/strain levels on the damping value is studied. Research is conducted on flat samples (plates) with different lay-up schemes from 1-layered to 12-layered. The paper contains information about the modal and harmonic tests on the samples and their numerical modeling.
Keywords: modal analysis, harmonic analysis, finite element model, non-linear damping properties, carbon fiber reinforced plastics.
The research was supported by “The Tomsk State University Academic D. I. Mendeleev Fund Program”, Grant No. 18.104.22.1685.
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