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Proceedings Paper

Smart structures for shock wave attenuation using ER inserts
Author(s): Jaehwan Kim; Jung-Yup Kim; Seung-Bok Choi; Kyung-Su Kim
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Paper Abstract

This Paper demonstrates the possibility of shock wave attenuation propagating through a smart structure that incorporates ER insert. The wave transmission of ER inserted beam is theoretically derived using Mead & Markus model and the theoretical results are compared with the finite element analysis results. To experimentally verify the shock wave attenuation, ER insert in an aluminum plate is made and two piezoceramic disks are used as transmitter and receiver of the wave. The transmitter sends a sine pulse signal such that a component of shock wave travels through the plate structure and the receiver gets the transmitted wave signal. Wave propagation of the ER insert can be adjusted by changing the applied electric field on the ER insert. Details of the experiment are addressed and the possibility of shock wave attenuation is experimentally verified. This kind of smart structure can be used for warship and submarine hull structures to protect fragile and important equipment.

Paper Details

Date Published: 16 August 2001
PDF: 11 pages
Proc. SPIE 4327, Smart Structures and Materials 2001: Smart Structures and Integrated Systems, (16 August 2001); doi: 10.1117/12.436527
Show Author Affiliations
Jaehwan Kim, Inha Univ. (South Korea)
Jung-Yup Kim, Inha Univ. (South Korea)
Seung-Bok Choi, Inha Univ. (South Korea)
Kyung-Su Kim, Inha Univ. (South Korea)


Published in SPIE Proceedings Vol. 4327:
Smart Structures and Materials 2001: Smart Structures and Integrated Systems
L. Porter Davis, Editor(s)

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