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Energy Absorption and Recovery in Tapered Granular Chains: Small Chains and Low Tapering

Published online by Cambridge University Press:  11 February 2011

Jan Pfannes ,
Surajit Sen ,
Soumya Chakravarti  and
Farhat I. Surve
Jan Pfannes
Affiliation:
Department of Physics, State University of New York, Buffalo, New York 14260, USA
Surajit Sen
Affiliation:
Department of Physics, State University of New York, Buffalo, New York 14260, USA
Soumya Chakravarti
Affiliation:
Department of Physics, California State Polytechnic University, Pomona, California 91768, USA
Farhat I. Surve
Affiliation:
Department of Physics, State University of New York, Buffalo, New York 14260, USA and Nowrosjee Wadia College, Pune, India
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Abstract

Shock absorption traditionally exploits visco-elastic devices, fluid viscous dampers and friction dampers, or “soft” materials. Recent work on impulse propagation in granular assemblies suggests that it may be possible to absorb shock waves using a different variety of shock absorbers and thus unlock the possibility of building structures that are significantly more shock absorbent than is currently possible, an issue of relevance to concerns of security. These new shock absorbers are composed of granular materials and exploit the nonlinear energy propagation properties in assemblies of granular materials. They have the potential to partially recover the energy of the absorbed shock waves for useful purposes, a property that might allow one to design devices to convert the incident energy to other useful forms. The basic physics of the “tapered chain shock absorber” is briefly discussed in this work.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 759: Symposium MM – Granular Material-Based Technologies , 2002 , MM4.5
Copyright
Copyright © Materials Research Society 2003

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References

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