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EnglishThe standard virtual crack closure technique may calculate negative values of the modal contributions to the energy release rate when analysing problems with highly asymmetric cracks. To avoid such physically meaningless results, a method is proposed, where the partitioning of fracture modes is based on the decomposition of the crack-tip nodal force into energetically orthogonal components. As an example, a delaminated cantilever beam subjected to bending moments is analysed. Both geometric and algebraic interpretations of the method are discussed.
| Autori interni: | VALVO, PAOLO SEBASTIANO (Corresponding) |
| Autori: | Valvo, PAOLO SEBASTIANO |
| Titolo: | A further step towards a physically consistent virtual crack closure technique |
| Anno del prodotto: | 2015 |
| Abstract: | The standard virtual crack closure technique may calculate negative values of the modal contributions to the energy release rate when analysing problems with highly asymmetric cracks. To avoid such physically meaningless results, a method is proposed, where the partitioning of fracture modes is based on the decomposition of the crack-tip nodal force into energetically orthogonal components. As an example, a delaminated cantilever beam subjected to bending moments is analysed. Both geometric and algebraic interpretations of the method are discussed. |
| Digital Object Identifier (DOI): | 10.1007/s10704-015-0007-4 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| 2015-IJF-Valvo-A_further_step_towards_a_physically_consistent_VCCT-Post print.pdf | Documento in Post-print | Tutti i diritti riservati (All rights reserved) | Open AccessVisualizza/Apri | |
| 2015-IJF-Valvo-A_further_step_towards_a_physically_consistent_VCCT.pdf | Editorial version | Versione finale editoriale | NON PUBBLICO - Accesso privato/ristretto | Utenti riconosciuti Richiedi una copia |
http://hdl.handle.net/11568/714663
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