NDLI: Experimental Evaluation of Residual Stresses in Pipes Manufactured by UOE and ERW Processes

Content Provider	Springer Nature Link
Author	Lothhammer, L. R. Viotti, M. R. Veiga, C. L. N. Albertazzi, A.
Copyright Year	2016
Abstract	Pipes are basic elements used in the construction of pipelines for the long-distance transportation of oil and gas and their derivatives. They can be manufactured by cold forming processes such as UOE and ERW, both widely used in the oil and gas industry. These processes produce high levels of non-uniform plastic deformation, which introduce a new state of residual stress into the material. In some cases, these stresses combine with mechanical stresses generated by external loads leading to service failures, interrupting the transmission line and increasing the risk of accidents. Therefore, determining in advance the residual stress distribution in pipes is an important task which involves the evaluation of the structural integrity. Six pipe samples obtained by the UOE and ERW processes were measured and evaluated using a portable optical device that combines radial in-plane digital speckle pattern interferometer (DSPI) with the incremental hole-drilling technique to measure residual stresses. The experimental results indicate a distinct residual stress distribution for each manufacturing process, while the measured residual stress distributions in the longitudinal and circumferential directions were similar at all measurement locations along an individual pipe.
Starting Page	287
Ending Page	296
Page Count	10
File Format	PDF
ISSN	00144851
Journal	Experimental Mechanics
Volume Number	57
Issue Number	2
e-ISSN	17412765
Language	English
Publisher	Springer US
Publisher Date	2016-10-17
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Residual stress UOE pipe ERW pipe Hole-drilling DSPI Continuum Mechanics and Mechanics of Materials Characterization and Evaluation of Materials Optics, Lasers, Photonics, Optical Devices Structural Mechanics Vibration, Dynamical Systems, Control Classical Mechanics
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Mechanical Engineering Aerospace Engineering

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