Application of NURBS in the Fracture Mechanics Framework to Study the Stress Intensity Factor

Soufiane MONTASSIR; Hassane MOUSTABCHIR; Ahmed ELKHALFI

doi:10.19139/soic-2310-5070-1553

Soufiane MONTASSIR Department of Mechanical Engineering, Faculty of Science and Technology. Sidi Mohamed Ben Abdellah University Fez, Morocco
Hassane MOUSTABCHIR National School of Applied Sciences Sidi Mohamed Ben Abdellah University Fez, Morocco
Ahmed ELKHALFI Department of Mechanical Engineering Faculty of Science and Technology. Sidi Mohamed Ben Abdellah University Fez, Morocco

DOI: https://doi.org/10.19139/soic-2310-5070-1553

Keywords: Crack, Fracture, NURBS, X-IGA

Abstract

In this investigation, we successfully employed the Non-Uniform Rational B-spline (NURBS) to study the fracture mechanics. the NURBS functions are very popular in the design field (CAD model) and it is used as an alternative to Lagrange interpolation polynomials. The extended isogeometric analysis based on this basis function is used to evaluate the stress intensity factors (SIFs) in order to control the crack propagation. For various crack lengths, SIFs were calculated to validate the accuracy of this technique. The results obtained are in good agreement with the available techniques as CFEM, X-FEM.

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