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http://hdl.handle.net/10773/8271
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cardoso, R. | pt |
dc.contributor.author | Silva, V. D. | pt |
dc.contributor.author | Varum, H. | pt |
dc.date.accessioned | 2012-04-23T13:51:51Z | - |
dc.date.available | 2012-04-23T13:51:51Z | - |
dc.date.issued | 2006 | - |
dc.identifier.isbn | 978-1-4020-4994-1 | - |
dc.identifier.uri | http://hdl.handle.net/10773/8271 | - |
dc.description.abstract | In this paper it is intended to verify the capacity of regularization of the numerical solution of an elasto-plastic problem with linear strain softening. The finite element method with a displacement approach is used. Drucker-Prager yield criteria is considered. The radial return method is used for the integration of the elasto-plastic constitutive relations. An elastovisco- plastic scheme is used to regularize the numerical solution. Two constitutive laws have been developed and implemented in a FE-program, the first represent the radial return method applied to Drucker-Prager yield criteria and the second is a time integration procedure for the Maxwell visco-elastic model. Attention is paid to finite deformations. An associative plastic flow is considered in the Drucker-Prager elasto-plastic model. The algorithms are tested in two problems with softening. Figures showing the capability of the algorithms to regularize the solution are presented. | pt |
dc.language.iso | eng | pt |
dc.publisher | Springer | pt |
dc.rights | openAccess | por |
dc.subject | Regularization | pt |
dc.subject | Visco-elasticity | pt |
dc.subject | Elasto-plasticity | pt |
dc.subject | Drucker-Prager | pt |
dc.subject | Radial Return | pt |
dc.title | Visco-elastic regularization and strain softening | pt |
dc.type | conferenceObject | pt |
dc.peerreviewed | yes | pt |
ua.publicationstatus | published | pt |
ua.event.date | 5-8 junho, 2006 | pt |
ua.event.type | conference | pt |
degois.publication.firstPage | 59 | pt |
degois.publication.title | ECCM-2006: III European Conference on Computational Mechanics: Solids, Structures and Coupled Problems in Engineering | - |
dc.identifier.doi | 10.1007/1-4020-5370-3_59 | pt |
Appears in Collections: | DECivil - Comunicações |
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