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Assessment of Fatigue Life in Presence of Different Hole Geometries by X-FEM

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Iranian Journal of Science and Technology, Transactions of Mechanical Engineering Aims and scope Submit manuscript

Abstract

The current study investigates the effect of different types of holes on fatigue crack propagation in typical edge-cracked specimens. The methodology is based on numerical procedure involving level set method in conjunction with extended finite element method (XFEM). Typical enrichment functions have been invoked at appropriate nodes to introduce the effect of cracks and hole geometries into the mathematical models. Generalised Paris law has been utilised for the assessment of fatigue life of cracked specimens. Indigenous codes on XFEM have been developed using MATLAB to solve various crack growth problems, and validation of the codes has been established against results already available for some benchmark problems. The study aims to investigate the effect of size and position of different types of hole geometries on fatigue life in an edge-cracked rectangular plate. Appropriate mathematical models were developed from the crack growth data generated in the current study to estimate the fatigue life of the cracked component containing various types of holes.

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Correspondence to Showkat Ahmad Kanth.

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Kanth, S.A., Harmain, G.A. & Jameel, A. Assessment of Fatigue Life in Presence of Different Hole Geometries by X-FEM. Iran J Sci Technol Trans Mech Eng 47, 1145–1159 (2023). https://doi.org/10.1007/s40997-022-00569-y

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  • DOI: https://doi.org/10.1007/s40997-022-00569-y

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