Fatigue Properties of TCS Stainless Steel Weld Joints in Axial Loading

Wei Li; Qiang Li; Ping Wang

doi:10.4028/www.scientific.net/AMM.29-32.664

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 29-32Fatigue Properties of TCS Stainless Steel Weld...

Fatigue Properties of TCS Stainless Steel Weld Joints in Axial Loading

Abstract:

Based on the grouping method and lifting and lowering method, the weld joints of TCS stainless steel such as butt joint and corner joint were experimentally examined to clarify their fatigue properties in axial loading. The probabilistic S-N curves were established from the viewpoint of the survival probability and confidence level, and the stress concentration factors were evaluated by using finite element model. As a result, corresponding to fatigue life of N=2×106, the mean values of fatigue limit for corner joint and butt joint are evaluated to be 162.7MPa and 173.7MPa, respectively. The stress concentration factors for butt joint and corner joint are evaluated to be 1.55 and 2.22, respectively.

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Periodical:

Applied Mechanics and Materials (Volumes 29-32)

Pages:

664-668

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.29-32.664

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Online since:

August 2010

Authors:

Wei Li, Qiang Li, Ping Wang

Keywords:

P-S-N Curve, Stress Concentration Factor (SCF), TCS Stainless Steel, Weld Fatigue

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