Abstract
We present a phase-field model for fracture in Kirchoff-Love thin shells using the local maximum-entropy (LME) meshfree method. Since the crack is a natural outcome of the analysis it does not require an explicit representation and tracking, which is advantage over techniques as the extended finite element method that requires tracking of the crack paths. The geometric description of the shell is based on statistical learning techniques that allow dealing with general point set surfaces avoiding a global parametrization, which can be applied to tackle surfaces of complex geometry and topology. We show the flexibility and robustness of the present methodology for two examples: plate in tension and a set of open connected pipes.
| Original language | English |
|---|---|
| Pages (from-to) | 102-109 |
| Number of pages | 8 |
| Journal | Theoretical and Applied Fracture Mechanics |
| Volume | 69 |
| DOIs | |
| Publication status | Published - 2014 Feb |
Bibliographical note
Funding Information:D.M. and M.A. acknowledge the support of the European Research Council under the European Community’s 7th Framework Programme (FP7/2007–2013)/ERC grant agreement no. 240487. M.A. acknowledges the support received through the prize “ICREA Academia” for excellence in research, funded by the Generalitat de Catalunya. F.A. and T.R. would like to thank the DAAD Programme des Projektbezogenen Personenaustauschs, for financial support to trip to Spain, and the Free State of Thuringia and Bauhaus Research School for financial support during the duration of this project. Y.S. would like to acknowledge the support of the grant from Subprograma Acciones Integradas España-Alemania (Spanish Ministry of Science and Innovation) with reference number PRI-AIBDE-2011-0883.
Keywords
- Local maximum entropy
- Manifold learning
- Meshfree method
- Phase-field model
- Point-set surfaces
- Thin shells
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanical Engineering
- Applied Mathematics