Application of PHT-splines in bending and vibration analysis of cracked Kirchhoff–Love plates

Javier Videla, Felipe Contreras, Hoang Nguyen, Elena Atroshchenko*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)
3 Downloads (Pure)

Abstract

In this work, we present an eXtended Geometry Independent Field approximaTion (X–GIFT) formulation for cracked Kirchhoff–Love plates. The plate geometry is modeled by Non-Uniform Rational B-Splines (NURBS) while the solution is approximated by Polynomial Splines over Hierarchical T-meshes (PHT-splines) and enriched by the Heaviside function and crack tip asymptotic expansions. The adaptive refinement is driven by a recovery-based error estimator. The formulation is employed for bending and vibration analysis. We compare different strategies for refinement, enrichment and evaluation of fracture parameters. The obtained results are shown to be in a good agreement with the reference solutions.

Original languageEnglish
Article number112754
JournalComputer Methods in Applied Mechanics and Engineering
Volume361
Early online date29 Nov 2019
DOIs
Publication statusPublished - 1 Apr 2020

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