Journal of Failure Analysis and Prevention

, Volume 5, Issue 6, pp 25–29 | Cite as

Stresses in bent copper tubing: Application to fatigue and stress-corrosion cracking failure mechanisms

  • M. E. Stevenson
  • J. L. McDougall
  • M. E. Barkey
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The residual and applied stresses in u-bent copper tubing are addressed in the context of both cyclic fatigue and stress-corrosion cracking. Failures as a result of fatigue and stress corrosion cracking in u-bent copper tubing have been observed to initiate at nonintuitive locations when only the applied stresses on the component are considered. This paper presents both qualitative classical and quantitative finite-element stress analysis results for the forming of u-bends. The resulting residual stress distributions are compared to fracture patterns generated by both fatigue and stress-corrosion cracking mechanisms.


copper fatigue metal forming residual stresses stress-corrosion cracking 


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Copyright information

© ASM International 2005

Authors and Affiliations

  • M. E. Stevenson
    • 1
  • J. L. McDougall
    • 1
  • M. E. Barkey
    • 2
  1. 1.Metals & Materials Engineers, LLCSuwanee
  2. 2.Department of Aerospace Engineering and MechanicsMetals & Materials Engineers, LLC and University of AlabamaTuscaloosa

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