Study of Typical Welded Joint Hot Spot Stress Concentration Factor

Bin Jie Wang; Qiang Li; Zhi Ming Liu

doi:10.4028/www.scientific.net/AMR.160-162.1482

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 160-162Study of Typical Welded Joint Hot Spot Stress...

Study of Typical Welded Joint Hot Spot Stress Concentration Factor

Abstract:

Hot spot stress (HSS) approach is more applicable for fatigue evaluation, because it is more closer to the real stress at the welded notch than nominal stress.This paper studies a typical welded joint, fillet welded joint, which is used widely in high-speed car. Hot spot stress concentration factor is calculated under different nominal stress and loading methods. The S-N curves belong to nominal stress and hot spot stress were analysized. The result show that the difference between the S-N curves under different load style can be reduced greatly by hot spot stress. The hot spot stress characteristic variable was put forward, which is used to describe the influence from the welding size of the joint.

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Periodical:

Advanced Materials Research (Volumes 160-162)

Pages:

1482-1487

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.160-162.1482

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Online since:

November 2010

Authors:

Bin Jie Wang, Qiang Li, Zhi Ming Liu

Keywords:

Characteristic Variable, Fatigue, Hot Spot Stress, Hot Spot Stress Concentration Factor, Weld Joint

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