Numerical Simulation on Residual Stress Generation in the Crack Tip of ASME P92 Steel

Yun Jian Jiang; Hong Yang Jing; Lian Yong Xu; Lei Zhao

doi:10.4028/www.scientific.net/AMR.421.522

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 421Numerical Simulation on Residual Stress Generation...

Numerical Simulation on Residual Stress Generation in the Crack Tip of ASME P92 Steel

Abstract:

In the present study, the residual stress generated in the crack tip of compact specimens was investigated in order to analyze the effect of residual stress on the creep crack growth. Residual stresses were generated using loading in compression beyond yield and then unloading. The maximum region of residual stress in the crack tip was obtained by numerical simulations which calculated the effect of notch radius and penetrated stress. It was found that a 2.5 mm notch radius with the applied stress at 36 KN could generate the largest extent of residual stress ahead of crack tip in the compact specimen. Further, when the specimen was heated to a high temperature, the value of residual stress reduced while the distribution changed little.

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Periodical:

Advanced Materials Research (Volume 421)

Pages:

522-525

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.421.522

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Online since:

December 2011

Authors:

Yun Jian Jiang, Hong Yang Jing, Lian Yong Xu, Lei Zhao

Keywords:

ASME P92 Steel, Creep Crack Growth, Numerical Simulation, Residual Stress

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