View in EDS

Acoustic response of aluminium and Duroid plates to hypervelocity impacts

Saved in:
Bibliographic Details
Title: Acoustic response of aluminium and Duroid plates to hypervelocity impacts
Authors: Burchell, M.J.1 m.j.burchell@kent.ac.uk, Standen, S.1, Cole, M.J.1, Corsaro, R.D.2, Giovane, F.3, Liou, J.- C.4, Pisacane, V.5, Sadilek, A.5, Stansbery, E.4
Source: International Journal of Impact Engineering. Jun2011, Vol. 38 Issue 6, p426-433. 8p.
Subjects: Detectors, Audio equipment, Aluminum plates, Hypervelocity, Cratering, Astrophysical collisions, Space vehicles
Abstract: Abstract: The growing need for real-time impact sensors for deployment on both space vehicles and space habitats (in orbit or on the surface of atmosphere-less bodies such as the Moon) has stimulated sensor development programmes. The sensors should be low mass, low power, easily read-out electronically, cover large areas and be sensitive to impacts which can cause damage up to and including penetration. We propose that piezo-strain acoustic sensors can play an important role in this work. Accordingly we report on a series of hypervelocity impact tests of acoustic sensors mounted on thin plates (aluminium and Duroid plates). The acoustic sensors gave strong signals for impacts of sub mm–mm scale projectiles. We investigated dependences on impactor speed and size, angle of incidence and tested the difference between cratering and penetrating impacts. [Copyright &y& Elsevier]
Copyright of International Journal of Impact Engineering is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:Abstract: The growing need for real-time impact sensors for deployment on both space vehicles and space habitats (in orbit or on the surface of atmosphere-less bodies such as the Moon) has stimulated sensor development programmes. The sensors should be low mass, low power, easily read-out electronically, cover large areas and be sensitive to impacts which can cause damage up to and including penetration. We propose that piezo-strain acoustic sensors can play an important role in this work. Accordingly we report on a series of hypervelocity impact tests of acoustic sensors mounted on thin plates (aluminium and Duroid plates). The acoustic sensors gave strong signals for impacts of sub mm–mm scale projectiles. We investigated dependences on impactor speed and size, angle of incidence and tested the difference between cratering and penetrating impacts. [Copyright &y& Elsevier]
ISSN:0734743X
DOI:10.1016/j.ijimpeng.2010.10.012