Fractural Mechanics Crack Propagation Study of Welded Joint of Different Material and Different Crack Location in ANSYS

International Journal of Mechanical Engineering

© 2021 by SSRG - IJME Journal

Volume 8 Issue 5

Year of Publication : 2021

Authors : Mr.V.V.Hinde, Dr.S.G.Mantri

10.14445/23488360/IJME-V8I5P101

How to Cite?

Mr.V.V.Hinde, Dr.S.G.Mantri, "Fractural Mechanics Crack Propagation Study of Welded Joint of Different Material and Different Crack Location in ANSYS," SSRG International Journal of Mechanical Engineering, vol. 8,  no. 5, pp. 1-6, 2021. Crossref, https://doi.org/10.14445/23488360/IJME-V8I5P101

Abstract:

Fracture mechanics is the field of mechanics concerned with the study of the propagation of cracks in materials. It uses methods of analytical solid mechanics to calculate the driving force on a crack and those of experimental solid mechanics to characterize the material's resistance to fracture. For the simulations and calculations done in this thesis, the FE program ANSYS 19.1 is used. Six different variations of material and crack tip of the welded joint are analyzed, one where the v-notch near the weld and second one where the v-notch is near the or in the hole where bolt assembly is there. For the one joint, the crack assumes to start near the weld and for the other joint the crack can originate either from hole where the stress intensity of joint is increased.From this it is concluded that if we need more life and less stress resistance then one can use aluminum alloy. On the other hand if we need more stress resistance and less no of cycles or life of part then go for either structural steel or stainless steel. Hardness of material plays an important role in resisting crack propagation. The modules of elasticity or constant use in Paris law such as material constant (which came from experimental investigation) influence strength and life of material.

Keywords:

Fracture Mechanics, Crack tip , Welded Joint, Strength & Life of Material, Ansys.

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