Title: Experimental investigation on hysteretic behavior of a shear thickening fluid damper
Abstract: Structural Control and Health MonitoringVolume 26, Issue 9 e2389 RESEARCH ARTICLE Experimental investigation on hysteretic behavior of a shear thickening fluid damper Minghai Wei, Minghai Wei orcid.org/0000-0002-6331-8927 Department of Construction and Engineering Management, Shenyang Jianzhu University, Shenyang, ChinaSearch for more papers by this authorKun Lin, Corresponding Author Kun Lin [email protected] orcid.org/0000-0002-3550-9443 Harbin Institute of Technology, Shenzhen, Shenzhen, China Correspondence Kun Lin, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, China. Email: [email protected] for more papers by this authorHongjun Liu, Hongjun Liu orcid.org/0000-0002-9604-2461 Harbin Institute of Technology, Shenzhen, Shenzhen, ChinaSearch for more papers by this author Minghai Wei, Minghai Wei orcid.org/0000-0002-6331-8927 Department of Construction and Engineering Management, Shenyang Jianzhu University, Shenyang, ChinaSearch for more papers by this authorKun Lin, Corresponding Author Kun Lin [email protected] orcid.org/0000-0002-3550-9443 Harbin Institute of Technology, Shenzhen, Shenzhen, China Correspondence Kun Lin, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, China. Email: [email protected] for more papers by this authorHongjun Liu, Hongjun Liu orcid.org/0000-0002-9604-2461 Harbin Institute of Technology, Shenzhen, Shenzhen, ChinaSearch for more papers by this author First published: 07 June 2019 https://doi.org/10.1002/stc.2389Citations: 21Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Summary In this study, a shear thickening fluid (STF) damper was experimented upon under different loading frequencies and amplitudes to investigate its nonlinear hysteretic behavior and energy dissipation capacity. An STF sample with 20% mass fraction and dispersion medium were prepared by nanoparticle silica (SiO2) and polyethylene glycol (PEG200). By using a parallel-plate rheometer, steady-state experiments were carried out to characterize the rheological properties of the sample. The results indicate that the STF sample shows an abrupt increase in viscosity/stress beyond a critical shear rate/strain. The results also show that the STF sample has good reversibility, thixotropy, and stability and can be used as a smart damping material in damper devices. Also, a prototype damper was developed and manufactured. Its nonlinear hysteretic behavior and energy dissipation capacity were experimentally investigated through the responses of damping force–displacement and damping force–velocity. The results show that the STF damper has excellent damping force as the loading condition increases and the controllability can be increased up to 3.21 times. The results also show that the energy dissipation capacity formed by damping force–displacement becomes fuller as the loading condition increases. Moreover, the results show that the graphical shapes of hysteretic loops of damping force–velocity can exhibit various styles as the STF's mechanism changes but the shapes are not stable when the velocity exceeds a certain value. Citing Literature Volume26, Issue9September 2019e2389 RelatedInformation