A study of damping characteristics of alumina-filled epoxy nano-composites

Priyanka Katiyar; Anand Kumar

doi:10.1117/12.2012150

3 April 2013 A study of damping characteristics of alumina-filled epoxy nano-composites

Priyanka Katiyar, Anand Kumar

Proceedings Volume 8689, Behavior and Mechanics of Multifunctional Materials and Composites 2013; 86891M (2013) https://doi.org/10.1117/12.2012150
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

Abstract

Damping behavior of polymeric composites with nano structured phases is significantly different from usual polymer composites. Viscoelastic homopolymers exhibit high material damping over a relatively narrow range of temperature and frequencies. In many practical situations a polymeric structure is required to possess better strength and stiffness properties together with a reasonable damping behavior. Viscoelastic polymers show higher loss factor beyond the glassy region which comes with a significant drop in the specific modulus. Addition of nano alumina particles to epoxy leads to improved strength and stiffness properties with an increase in glass transition temperature while retaining its damping capabilities. Experimental investigations are carried out on composite beam specimen fabricated with different volume fractions of alumina nano particles in epoxy to determine loss factor, tan δ. Impact damping method is used for time response analysis. A single point Laser is used to record the transverse displacement of a point on the composite beam specimen. Experimental results are compared with theoretical estimation of loss factor using Voigt estimation. The effect of interphase is included in theoretical estimation of loss factor. Passive vibration suppression may be introduced in the polymeric structures along with improved structural properties by tailored dynamic characteristics using nano alumina particle filled epoxy composites.

Citation Download Citation

Priyanka Katiyar and Anand Kumar "A study of damping characteristics of alumina-filled epoxy nano-composites", Proc. SPIE 8689, Behavior and Mechanics of Multifunctional Materials and Composites 2013, 86891M (3 April 2013); https://doi.org/10.1117/12.2012150

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available