WIT Press


A Double-acting Reusable Energy Absorber

Price

Free (open access)

Paper DOI

10.2495/CON990281

Volume

24

Pages

10

Published

1999

Size

911 kb

Author(s)

A.A. Alghamdi, A.A.N. Aljawi and M. Alharthi

Abstract

This paper presents an innovative device for use as an energy absorber. The absorber consists of a central solid core surrounded by a cell containing circular solid rods. The entire assembly is enclosed inside a thin circular cylinder that embodies the energy unit. Radial forces between the core and the rods surrounding it are controlled by means of setscrews and nuts fixed on the cylinder. Energy is dissipated by friction forces generated at the contact surfaces when the central core is displaced axially in either direction, which feature characterizes the device as a double action energy absorber. Quasi-static experimental investigations were carried out using a Universal Instron Testing Machine. The results clearly illustrated the effect of applied r

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