The application of paints and other coatings over joints, gaps, and fasteners is universal in industrial applications. Where substrate flexing occurs, such as in aerospace and automotive use, an understanding of strains within such systems is essential. Results of finite-element analysis of various two- and three-dimensional models of coated joints are presented here. We provide comparative strain concentration results assuming coatings of differing modulus, particularly showing regions where a high degree of strain control is possible. In two dimensions we examine results for a coated tensile joint, two-point bend with a notched trough, and two-point bend with separated substrate panels. In three dimensions, we provide results for an uncoated single panel containing a countersunk rivet.

Subject
Openings, Strain rate, Protective coatings, Coatings, Substrates, Moduli, Walls, Physics, Field joint coatings, Industrial applications, Joints, Polymers, Sealants
© 2017 Association for Materials Protection and Performance (AMPP). All rights reserved. This work is protected by both domestic and international copyright laws. 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).
2017
Association for Materials Protection and Performance (AMPP)
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