Browsing by Subject "Elasticity"
Now showing items 1-20 of 98
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A 2.5D coupled FEM-BEM-MFS methodology for longitudinally invariant soil-structure interaction problems
(Elsevier, 2021-04)
Article
Open AccessThis paper is concerned with a new prediction methodology for longitudinally invariant soil-structure interaction problems in elastodynamics. The method uses the finite-element method to model the structure, the boundary-element ... -
A data-driven learning method for constitutive modeling: application to vascular hyperelastic soft tissues
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-05-01)
Article
Open AccessWe address the problem of machine learning of constitutive laws when large experimental deviations are present. This is particularly important in soft living tissue modeling, for instance, where large patient-dependent ... -
A finite element approach to the simulation of hydraulic fractures with lag
(2013)
Article
Open AccessWe presented a finite-element-based algorithm to simulate plane-strain, straight hydraulic fractures in an impermeable elastic medium. The algorithm acCOllllts for the nonlinear coupling between the fluid pressure and the ... -
A hierarchical mathematical model for automatic pipelining and allocation using elastic systems
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Conference report
Open AccessThe advent of FPGA-based accelerators has encouraged the use of high-level synthesis (HLS) for rapid prototyping and design space exploration. In this context, design optimization at behavioral level becomes a critical ... -
A locking-free face-centred finite volume (FCFV) method for linear elastostatics
(2019-02-01)
Article
Open AccessA face-centred finite volume (FCFV) method is proposed for linear elastostatic problems. The FCFV is a mixed hybrid formulation, featuring a system of first-order equations, that defines the unknowns on the faces (edges ... -
A multi-scale theoretical model for soft materials
(Universitat Politècnica de Catalunya, 2018-09-27)
Bachelor thesis
Open AccessMany manufactured materials, such as rubbers, are made of several constituents with very different mechanical stiffness. Interestingly, the overall mechanical response of the material exhibits a very particular response ... -
A sensibility analysis to geometric and cutting conditions using the particle finite element method (PFEM)
(Red Hook, 2013)
Conference report
Open AccessThe (PFEM) is employed to simulate orthogonal metal cutting of 42CD4 steel. The objectives of this work are mainly three: The first one is to validate PFEM strategies as an efficient tool for numerical simulation of metal ... -
A simple microstructural viscoelastic model for flowing foams
(2019-03)
Article
Open AccessThe numerical modelling of forming processes involving the flow of foams requires taking into account the different problem scales. Thus, in industrial applications a macroscopic approach is suitable, whereas the macroscopic ... -
A superconvergent hybridisable discontinuous Galerkin method for linear elasticity
(John Wiley & sons, 2018-10-12)
Article
Open AccessThe first superconvergent hybridisable discontinuous Galerkin method for linear elastic problems capable of using the same degree of approximation for both the primal and mixed variables is presented. The key feature of ... -
An accurate nonlocal bonded discrete element method for nonlinear analysis of solids: application to concrete fracture tests
(Springer, 2020-05)
Article
Open AccessWe present a numerical procedure for elastic and nonlinear analysis (including fracture situations) of solid materials and structures using the discrete element method. It can be applied to strongly cohesive frictional ... -
An anisotropic microsphere-based approach for fiber orientation adaptation in soft tissue
(2011)
Article
Open AccessEvolutionary processes in biological tissue, such as adaptation or remodeling, represent an enterprising area of research. In this paper, we present a multiscale model for the remodeling of fibered structures, such as ... -
An atomistic-based foliation model for multilayer graphene materials and nanotubes
(2013-01)
Article
Open AccessWe present a three-dimensional continuum model for layered crystalline materials made out of weakly interacting two-dimensional crystalline sheets. We specialize the model to multilayer graphene materials, including ... -
An entropy-stable updated reference Lagrangian smoothed particle hydrodynamics algorithm for thermo-elasticity and thermo-visco-plasticity
(Springer, 2023-04-03)
Article
Open AccessThis paper introduces a novel upwind Updated Reference Lagrangian Smoothed Particle Hydrodynamics (SPH) algorithm for the numerical simulation of large strain thermo-elasticity and thermo-visco-plasticity. The deformation ... -
An immersed boundary hierarchical B-spline method for flexoelectricity
(2019-09-01)
Article
Open AccessThis paper develops a computational framework with unfitted meshes to solve linear piezoelectricity and flexoelectricity electromechanical boundary value problems including strain gradient elasticity at infinitesimal ... -
An upwind cell centred Total Lagrangian finite volume algorithm for nearly incompressible explicit fast solid dynamic applications
(2018-10-01)
Article
Open AccessThe paper presents a new computational framework for the numerical simulation of fast large strain solid dynamics, with particular emphasis on the treatment of near incompressibility. A complete set of first order hyperbolic ... -
Analysis of high-order interpolation schemes for solving linear problems in unstructured meshes using the finite volume method
(Scipedia, 2022)
Conference report
Open AccessFinite-volume strategies in fluid-structure interaction problems would be of crucialvimportance in many engineering applications such as in the analysis of reed valves in reciprocating compressors. The efficient implementation ... -
Analysis of the simplified structure of a rocket in initial phases and in flight
(Universitat Politècnica de Catalunya, 2022-10-13)
Bachelor thesis
Restricted access - author's decisionIn this report, a structural analysis of a rocket is performed. Its aim it to base the analysis on finite elements, where transient states and vibrations will be taken into account, in order to obtain nodal displacements ... -
Anisotropic tissue elasticity in human lumbar vertebra, by means of a coupled ultrasound-micromechanics approach
(2012-07-01)
Article
Restricted access - publisher's policyThe extremely fi ne structure of vertebral cortex challenges reliable determination of the tissue's anisotropic elasticity, which is important for the spine's load carrying patterns often causing pain in patients. As a ... -
Anisotropy can imply exponential decay in micropolar elasticity
(Elsevier, 2023-08)
Article
Open AccessIn this note, two problems arisen in micropolar elasticity are considered from the analytical point of view. Following the Kelvin–Voigt theory of micropolar viscoelasticity, two dissipative mechanisms are imposed: in the ... -
Aplicació del Material Point Method (MPM) a la deformació d'objectes
(Universitat Politècnica de Catalunya, 2020-01-23)
Bachelor thesis
Open AccessUna de les branques més importants dins de l'animació per computador és la simulació física del comportament dels objectes d'una escena. Generalment es busca obtenir resultats que visualment es comportin com els objectes ...
