Advertisement

Measurement of Residual Stress Distribution and Fatigue Life Assessment of Similar and Dissimilar Butt-Welded Joint

  • Varun Ravichandran
  • E. R. Revanth
  • D. Varun Kumar
  • M. Sandeep
  • A. Harish
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

The residual stresses developed during welding are deleterious to fatigue life. Tensile stresses tend to pull apart the surface of the material. Cracks are developed when subjected to high tensile stress. By altering the residual stress level, fatigue life can be improved significantly. The intent of this work is to measure the residual stress distribution and fatigue life assessment of butt-welded joint with similar (M.S IS 2062) and dissimilar (SS304L & M.S IS 2062) materials. The residual stress level in these joints is evaluated accurately by X-ray diffraction, before and after the surface modification. Shot peening is the surface modification method employed to enhance fatigue life of the joint. Based on the experimental results, it is observed that fatigue life of the welded joint has been improved.

Keywords

Residual stress Shot peening Fatigue life Butt welding 

References

  1. 1.
    Molzen MS, Hornbach D Evaluation of welding residual stress levels through shot peening and heat treating Google Scholar
  2. 2.
    Chataigner S, Dieng L, Guit K, Grasset M (2013) Improving welded joint fatigue life using shot peening or grinding, France, Jan 2013Google Scholar
  3. 3.
    Hasegawa M, Suzuki H (2010) Improvement of the fatigue strength of aluminium alloy welded joints by high hardness and large specific gravity shot peening. Weld Int 19Google Scholar
  4. 4.
    Saini M, Arora N, Pandey C, Mehdi H (2014) Mechanical properties of bimetallic weld joint between sa 516 grade 65 carbon steel and SS 304 l for steam generator applicationGoogle Scholar
  5. 5.
    Cheng X, Prask HJ, Gnaeupel Herold T, Luzin V, Fisher JW Neutron diffraction measurements for residual stresses in AL-6XN stainless steel welded beamsGoogle Scholar
  6. 6.
    (Johnny) Johnson MH Fatigue life improvement techniques for welds, Process Barron AlabamaGoogle Scholar
  7. 7.
    Baptista R, Infante V, Branco CM Experimental and numerical analysis of fatigue life improvement techniques in welded joints of stainless steels, Lisbon, PortugalGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Varun Ravichandran
    • 1
  • E. R. Revanth
    • 1
  • D. Varun Kumar
    • 1
  • M. Sandeep
    • 1
  • A. Harish
    • 1
  1. 1.Mechanical Engineering DepartmentBNM Institute of TechnologyBangaloreIndia

Personalised recommendations