An in-depth analysis of the Radial Point Interpolation Method’s parameters in relation to the accuracy of fracture problem

• Sai Naga Kishore Vutla ^[1] ; Thamarai Selvan Vasu ^[1]
  1. [1] Department of Mechanical Engineering, National Institute of Technology Warangal, Hanamkonda, India
• Localización: Mechanics based design of structures and machines, ISSN 1539-7734, Vol. 53, Nº. 4, 2025, págs. 2403-2422
• Idioma: inglés
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• Resumen

  • The fracture problem has been modeled using Radial Point Interpolation Method (RPIM) to examine the effects of support domain size and shape parameter value on the calculation of Stress Intensity Factor (SIF). The study focuses on an edge crack problem subjected to normal load and shear loads, determining that the support domain size of ‘�≥3.5 and shape parameter value between ‘�=1.9-2.1’ yield results of accuracy with error %≤3%. Additionally, research extended by varying the problem domain size and crack location to verify consistency. The findings indicate that selecting the optimal shape parameter value will ensure better accuracy over the enrichment techniques with lesser computational cost.