A Double-acting Reusable Energy Absorber
Price
Free (open access)
Transaction
Volume
24
Pages
10
Published
1999
Size
911 kb
Paper DOI
10.2495/CON990281
Copyright
WIT Press
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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