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Paper Title
Evaluation of Stress Intensity Factor for mode I using Finite Element Analysis for 304 stainless steel
  Siddeshkumar C D,  Shanthala N L

The aim of this research is to determine the mode I Stress Intensity Factor and characterize the fatigue crack growth behaviour of structural steel alloy and 304 grade stainless steel specimens for cryogenic pressure vessel application. Compact Tension (CT) specimens found in the literature were used to calculate the geometric and mechanical parameters. CATIA V5 is being used to model the CT specimen. For the geometric parameters employed in this study, the theoretical value of KI is calculated using the ASTM E-399-83 formulation for measuring stress intensity factor. Analysis is carried out to solve the CT specimen problem using finite element analysis. The pre-meshed crack is generated at the crack front by creating the local coordinate system. Then the obtained analysis results are compared with the theoretical results. Different crack lengths are considered in this study. Overall, promising results were produced, with a good argument when compared to the theoretical result. The stress intensity factor values of 304 grade stainless steel is less than the SIF values of structural steel for respective crack length. Therefore 304 grade stainless steel is preferred for the cryogenic pressure vessel.

Keywords- Stress intensity factor, Linear elastic fracture mechanics, Fracture toughness, CT specimen, structural steel, 304 stainless steel, stress analysis.
Publication Details
Unique Identification Number - IJEDR2103013
Page Number(s) - 84-92
Pubished in - Volume 9 | Issue 3 | August 2021
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)
Cite this Article
  Siddeshkumar C D,  Shanthala N L,   "Evaluation of Stress Intensity Factor for mode I using Finite Element Analysis for 304 stainless steel", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.9, Issue 3, pp.84-92, August 2021, Available at :http://www.ijedr.org/papers/IJEDR2103013.pdf
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