Novel design of honeycombs using a seamless combination of auxetic and conventional cores toward phononic band gap engineering

Sushovan Mukherjee; Fabrizio Scarpa; S. Gopalakrishnan

doi:10.1117/12.2083780

3 April 2015 Novel design of honeycombs using a seamless combination of auxetic and conventional cores toward phononic band gap engineering

Sushovan Mukherjee, Fabrizio Scarpa, S. Gopalakrishnan

Author Affiliations +

Proceedings Volume 9434, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2015; 94340L (2015) https://doi.org/10.1117/12.2083780
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2015, San Diego, California, United States

Abstract

A novel design for the geometric configuration of honeycombs using a seamless combination of auxetic and conventional cores-elements with negative and positive Possion ratios respectively, has been presented. The proposed design has been shown to generate a superior band gap property while retaining all major advantages of a purely conventional or purely auxetic honeycomb structure. Seamless combination ensures that joint cardinality is also retained. Several configurations involving different degree of auxeticity and different proportions auxetic and conventional elements have been analyzed. It has been shown that the preferred configurations open up wide and clean band gap at a significantly lower frequency ranges compared to their pure counterparts. In view of existence of band gaps being desired feature for the phononic applications, reported results might be appealing. Use of such design may enable superior vibration control as well. Proposed configurations can be made isovolumic and iso-weight giving designers a fairer ground of applying such configurations without significantly changing size and weight criteria.

Citation Download Citation

Sushovan Mukherjee, Fabrizio Scarpa, and S. Gopalakrishnan "Novel design of honeycombs using a seamless combination of auxetic and conventional cores toward phononic band gap engineering", Proc. SPIE 9434, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2015, 94340L (3 April 2015); https://doi.org/10.1117/12.2083780

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