Stresses in bent copper tubing: Application to fatigue and stress-corrosion cracking failure mechanisms
- 315 Downloads
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.
Keywordscopper fatigue metal forming residual stresses stress-corrosion cracking
Unable to display preview. Download preview PDF.