Buscar
Mostrando ítems 21-30 de 605
2d Analysis Of Intergranular Dynamic Crack Propagation In Polycrystalline Materials A Multiscale Cohesive Zone Model And Dual Reciprocity Boundary Elements
(PERGAMON-ELSEVIER SCIENCE LTDOXFORD, 2016)
Modelado de falla de materiales mediante formulaciones multiescala
(2014-03-31)
In this thesis, multiscale formulations to model the failure of heterogeneous materials, based in the RVE (Representative Volume Element) concept, are studied and developed. A mechanical coupling between two scales, the ...
Stability and robustness issues in numerical modeling of material failure in the strong discontinuity approach
(Elsevier Science Sa, 2006-12)
Robustness and stability of the Continuum Strong Discontinuity Approach (CSDA) to material failure are addressed. After identification of lack of symmetry of the finite element formulation and material softening in the ...
Viscoplastic approach for rate-dependent failure analysis of concrete joints and interfaces
(Pergamon-Elsevier Science Ltd, 2008-12)
In this work, a new rate-dependent interface model for computational analysis of quasi-brittle materials like concrete is presented. The model is formulated on the basis of the inviscid elastoplastic model by [Carol, I., ...
FATIGUE RESISTANCE OF CAD/CAM COMPLETE CROWNS WITH A SIMPLIFIED CEMENTATION PROCESS
(Mosby-elsevierNew YorkEUA, 2014)
Aplicação do modelo de kriging na otimização de estruturas de materiais compostos laminados
(Universidade Tecnológica Federal do ParanáCuritibaBrasilDepartamento Acadêmico de MecânicaEngenharia MecânicaUTFPR, 2011-12-01)
Surrogate models (or metamodels) are mathematical approximations used to replace more detailed models, in order to reduce the computational time when many evaluations are necessary. They are obtained from mathematical ...
Constitutive formulation, localization and failure analysis of porous materials like concrete subjected to high temperatura
(International Amusement Manufacturing Company, 2014)
In this work, a thermodynamically consistent non-local poroplastic constitutive theoryfor quasi-brittle materials like concrete subjected to high temperature is presented [1].
Thereby, gradient poroplasticity and fracture ...
Lithium disilicate ceramic endocrown biomechanical response according to different pulp chamber extension angles and filling materials
(2021-03-01)
The purpose of this study is to evaluate the effect of pulp chamber extension angles and filling material mechanical properties on the biomechanical response of a ceramic endocrown. A 3D model of maxillary molar that ...