An automated apparatus and test procedure was developed to test elastomers for explosive decompression(ED) resistance. The apparatus utilizes a cyclic gas pressurization followed by rapid decompression. The test continues until the one of two elastomeric O-rings in die apparatus fails and pressure is transmitted, automatically shutting down the Est. A study was done to determine optimum gas soak period and to screen some common O-ring materials. Preliminary results show different gas permeation rates for different materials. The validity of the test technique to screen elastomers for ED resistance is shown.

Subject
Test methods, Materials, Materials performance, Annulus, Gas pressure, Chemical resistance, Explosives, Test apparatus, Tensile strength, Elastomers, Blistering, Hardness, Damage
© 1997 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1997
Association for Materials Protection and Performance (AMPP)
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