Para acceder a los documentos con el texto completo, por favor, siga el siguiente enlace: http://hdl.handle.net/2117/27395

Explicit finite deformation stress integration of the elasto-plastic constitutive equations
Monforte Vila, Lluís; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio; Carbonell Puigbó, Josep Maria
Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica; Universitat Politècnica de Catalunya. Departament de Resistència dels Materials i Estructures en Enginyeria; Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques; Universitat Politècnica de Catalunya. RMEE - Grup de Resistència de Materials i Estructures a l'Enginyeria
In this work, an explicit integration scheme for hyperelastic-based finite strains elasto-plasticity is presented. One step update equations are obtained from the large deformation multiplicative elasto-plasticity theory, where an exponential variation of the plastic deformation gradient is assumed. In addition, the material tangent matrix is presented and has the same formal structure as the usual small strains elasto-plastic tangent matrix. In purely elastic regime, the proposal reduces to the usual large deformation elasticity equations. Routines to alleviate the main drawbacks of explicit methods are outlined, such as a yield surface drift correction scheme and an adaptive substepping method. Several examples of typical geotechnical tests using the Houlsby hyperelastic model along with the Modified Cam Clay plastic model are discussed. Results from a convergence test suggest that, using an adaptive substepping scheme, the error of the local problem is independent of the step size.
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
Soil mechanics--Mathematical models
Mecànica dels sòls -- Models matemàtics
info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
CRC Press Taylor & Francis Group
         

Mostrar el registro completo del ítem

Documentos relacionados

Otros documentos del mismo autor/a

Arroyo Alvarez de Toledo, Marcos; Mariano, Di A; Gens Solé, Antonio; Alonso Pérez de Agreda, Eduardo; García-Fontanet, A; García-Germán, J
Ciantia, Matteo Oryem; Arroyo Alvarez de Toledo, Marcos; Butlanska, Joanna; Gens Solé, Antonio
Ciantia, Matteo Oryem; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio; Calvetti, Francesco
Butlanska, Joana; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio
Climent Pera, Natalia; Arroyo Alvarez de Toledo, Marcos; O'Sullivan, Catherine; Gens Solé, Antonio