Experimental investigation on vibration characteristics of shear thickening fluid filled CFRP tubes. (15th October 2019)

• Record Type: Journal Article
• Authors: Gürgen, Selim; Sofuoğlu, Mehmet Alper
• Is Part Of: Composite structures. Volume 226(2019)
• Publication Date: 2019-10-15
• Subjects: CFRP -- Modal analysis -- Shear thickening fluid -- Non-Newtonian rheology; Composite construction -- Periodicals; Composites -- Périodiques; 624.18
• DOI: 10.1016/j.compstruct.2019.111236
• Languages: English
• ISSNs: 0263-8223

Abstract

Abstract: Vibration attenuation performance of structures is significantly important in aerospace, automotive, sport and medical equipment applications. In order to enhance the vibration absorption properties, shear thickening fluid (STF) is a candidate component in the structures due to its viscoelastic behavior. In this study, the vibration characteristics of carbon fiber reinforced polymer (CFRP) tubes were investigated. To compensate the lack of vibration isolation behavior of CFRP tubes, a natural STF was filled into the tubes and thus, the thickening rheology of this smart fluid was benefited in the STF/CFRP structures. The vibrational properties of the structures were investigated with modal analysis and the natural frequencies and damping ratios were calculated for two different boundary conditions (single and double-fixed ends). The results showed that the STF integration into the CFRP tubes significantly enhances the natural frequency of the structures as well as providing higher damping ratio in the STF/CFRP systems.