An experimental program was conducted to investigate the effect of the arm displacement and the initial notch, through the initial applied K, Kapplied, on the measured value of KISCC. Additionally, the crack length evolution in different specimen size and geometries was calculated with a computer model, based on experimental results obtained from a standard DCB. These specimens were selected to compare the effect of high Kapplied gradients. With these results, plots of Kapplied vs. time were calculated to show that specimens could be selected in order to minimize the time needed to reach KISCC, and thus avoiding, at least in part, the effect of changes of the test conditions.

Subject
Test methods, Crack growth, Materials, Secondary cracks, Geometry, Compliance, Notches, Crack propagation, Experimental data, Crack length, Sulfide stress cracking, Cracks, Stress corrosion cracking
Keywords:
Sour environment, Sulfide stress cracking, Double Cantilever Beam, Specimen geometry, Crack growth, Stress intensity factor
© 2004 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).
2004
Association for Materials Protection and Performance (AMPP)
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