Isogeometric analysis for modelling damage and fracture

Herrero Adan, Daniel; Cardoso, Rui; Adetoro, Oluwamayokun; Amali, Ramin

Abstract

Isogeometric Analysis can be applied to model damage and crack initiation and propagation. To predict the cracking behaviour the stress field is used. The main advantage in IGA is the high inter-elemental continuity of the displacement field, which leads to a high-quality stress field and therefore facilitates the prediction of the crack path. The traditional functions used in IGA, non-uniform rational B-splines (NURBS), do not allow for local refinement. Indeed, one single control point cannot be inserted but a whole row of control points. To allow local refinement a variation of NURBS must be used. In this work we apply the so-called T-splines to simulate fracture in bi-dimensional domains. The results are preliminary but this work sets the path to simulate crack initiation and propagation using IGA with T-splines local refinement.

• Presentation Conference Type: Conference Paper (published)
• Conference Name: COMPLAS 2017
• Start Date: Oct 8, 2017
• Acceptance Date: Oct 1, 2020
• Publication Date: Oct 1, 2017
• Deposit Date: Oct 7, 2020
• Publicly Available Date: Oct 7, 2020
• Public URL: https://uwe-repository.worktribe.com/output/6758535