A Review Paper on Fatigue Strength and Crack Initiation Analysis of Welded Joints of Mild Steel

Author(s):

Ravi Kant Mishra , RUSTAMJI INSTITUTE OF TECHNOLOGY BORDER SECURITY FORCE, THEKHANPUR, GWALIOR.; Mr. Anand Baghel, RUSTAMJI INSTITUTE OF TECHNOLOGY BORDER SECURITY FORCE, THEKHANPUR, GWALIOR.

Keywords:

Fatigue, Welded joint, Stress Concentration factor, Life cycle

Abstract:

Aim of this paper is to study about the fatigue strength of welded joints by means of fracture mechanics approach that takes into account the fatigue behavior of welded joints. The methodology helps to find out the fatigue crack propagation rate as a function of the difference between the applied driving force and the material threshold for crack propagation, a function of crack length. Failure of welded structures or machine parts causes different direct losses such as the cost of repair work, the cost of the work to avoid upcoming failure and accident compensation, and decrease in production. Joints being the weakest element in any structure/machine are possible to fail first. Therefore, it is essential to analyze the failure of those joints. Understanding a failure occurrence and its propagation will result in a better appreciation of welded joints from reliability point of view. It may be feasible that some purpose activities or failure causes may be critical and may be minimized at layout or fabrication stage main to failure minimization of such joints.

Other Details:

Manuscript Id	:	IJSTEV5I12019
Published in	:	Volume : 5, Issue : 12
Publication Date	:	01/07/2019
Page(s)	:	4-8

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