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Dynamic Behavior Modeling of Natural-Rubber/Polybutadiene-Rubber-Based Hybrid Magnetorheological Elastomer Sandwich Composite Structures.
N, Ahobal; Jakkamputi, Lakshmi Pathi; Gnanasekaran, Sakthivel; Thangamuthu, Mohanraj; Rakkiyannan, Jegadeeshwaran; Bhalerao, Yogesh Jayant.
Afiliación
  • N A; Department of Mechanical Engineering, Dayananda Sagar College of Engineering, Bengaluru 560078, India.
  • Jakkamputi LP; School of Mechanical Engineering, Vellore Institute of Technology, Chennai 600127, India.
  • Gnanasekaran S; Centre for Automation, Vellore Institute of Technology, Chennai 600127, India.
  • Thangamuthu M; School of Mechanical Engineering, Vellore Institute of Technology, Chennai 600127, India.
  • Rakkiyannan J; Department of Mechanical Engineering, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India.
  • Bhalerao YJ; Centre for Automation, Vellore Institute of Technology, Chennai 600127, India.
Polymers (Basel) ; 15(23)2023 Nov 30.
Article en En | MEDLINE | ID: mdl-38232007
ABSTRACT
This study investigates the dynamic characteristics of natural rubber (NR)/polybutadiene rubber (PBR)-based hybrid magnetorheological elastomer (MRE) sandwich composite beams through numerical simulations and finite element analysis, employing Reddy's third-order shear deformation theory. Four distinct hybrid MRE sandwich configurations were examined. The validity of finite element simulations was confirmed by comparing them with results from magnetorheological (MR)-fluid-based composites. Further, parametric analysis explored the influence of magnetic field intensity, boundary conditions, ply orientation, and core thickness on beam vibration responses. The results reveal a notable 10.4% enhancement in natural frequencies in SC4-based beams under a 600 mT magnetic field with clamped-free boundary conditions, attributed to the increased PBR content in MR elastomer cores. However, higher magnetic field intensities result in slight frequency decrements due to filler particle agglomeration. Additionally, augmenting magnetic field intensity and magnetorheological content under clamped-free conditions improves the loss factor by from 66% to 136%, presenting promising prospects for advanced applications. This research contributes to a comprehensive understanding of dynamic behavior and performance enhancement in hybrid MRE sandwich composites, with significant implications for engineering applications. Furthermore, this investigation provides valuable insights into the intricate interplay between magnetic field effects, composite architecture, and vibration response.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Polymers (Basel) Año: 2023 Tipo del documento: Article País de afiliación: India Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Polymers (Basel) Año: 2023 Tipo del documento: Article País de afiliación: India Pais de publicación: Suiza