Reduction of tensile strength was demonstrated for carbon fiber reinforced epoxy resin composite strips after exposure to sulfate-reducing bacteria (SRB) in batch culture. Composite strips were maintained in a stressed condition in 3- and 4-point bend fixtures before and during exposure. Exposed surfaces were examined microscopically for bacterial colonization, fiber disruption and disbonding. Mechanical testing and acoustic emission (AE) examinations were used to evaluate degradation of tensile strength.

Subject
Test methods, Fixtures, Steel surfaces, Materials, Mechanical testing, Acoustic emission, Graphite, Interfaces, Composites, Fibers, Bacteria, Sulfides, Corrosion coupons
Keywords:
polymeric composites, microbial degradation, mechanical testing, acoustic emission
© 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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