This paper summarizes observations made by the authors over the last few years on the double-cantilever-beam (DCB) coupon and associated testing methodology. The NACE coupon compliance was experimentally determined and the accuracy of calculated stress intensity factors discussed. The difference between 7 and 14 day exposures are shown and a suggestion made for a reduced exposure. The importance of proper fatigue precracking is highlighted and the effect of DCB geometry with respect to out-of-plane cracking discussed.

Subject
Materials, Grooves, Geometry, Compliance, Stress cracking, Stress, Precracking, Crack length, Steel, Corrosion coupons, Fatigue, Cracks, Stress corrosion cracking
© 1995 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).
1995
Association for Materials Protection and Performance (AMPP)
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