Table of Contents
ISRN Polymer Science
Volume 2014, Article ID 840397, 14 pages
http://dx.doi.org/10.1155/2014/840397
Research Article

Damping Evaluation of Linseed Oil-Based Engineering Elastomers by Vibration Response Method

1Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, India
2Precision Metrology Laboratory, Department of Mechanical Engineering, Sant Longowal Institute of Engineering & Technology, Sangrur, Punjab 148106, India

Received 21 November 2013; Accepted 16 January 2014; Published 23 February 2014

Academic Editors: B. Hazer and B. Kiskan

Copyright © 2014 Rakesh Das et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A low cost experimental setup has been fabricated for evaluation of vibration damping properties of a variety of elastomers developed from linseed oil. Free and forced vibration principles were utilized in this experimental setup. Under forced vibration, the shear loss factor varies from 0.37 to 1.03 at 2nd bending vibration mode and 0.43 to 0.99 at 3rd bending vibration mode for different elastomers. The loss factor varies from 0.52 to 0.94 under free vibration. The loss factors determined by both forced and free vibration techniques are in good agreement with the loss factors obtained from dynamic mechanical analysis. The ultimate tensile strength and Young’s modulus of the elastomers vary from 0.37 to 3.71 MPa and 0.27 to 10.27 MPa, respectively, whereas these properties in compression are in the range of 3.1 to 72.9 MPa and 1.5 to 30.1 MPa, respectively. Thus, these elastomers are mechanically stable for vibration damping applications.