alejandro – Page 2

El Método del Elemento Virtual: Teoría y Aplicaciones Usando la Librería VEMLab

January 23, 2019
Comments off

A talk given by A. Ortiz-Bernardin at JMC2018, October 5, 2018, Punta Arenas, Chile. EL MÉTODO DEL ELEMENTO VIRTUAL: TEORÍA Y APLICACIONES USANDO LA LIBRERÍA VEMLab Alejandro Ortiz-Bernardin*, Edgardo Olate-Sanzana* y Rodrigo Silva-Valenzuela* * Departamento de Ingeniería Mecánica – Universidad de Chile Av. Beauchef 851 – Santiago – CHILE RESUMEN En este trabajo, de carácter pedagógico,

Read More » Read More

Veamy: an extensible object-oriented C++ library for the virtual element method

December 24, 2018
Comments off

Numerical Algorithms Vol. 82, pp. 1189-1220, 2019 A. Ortiz-Bernardin, C. Alvarez, N. Hitschfeld-Kahler, A. Russo, R. Silva-Valenzuela, E. Olate-Sanzana Abstract This paper summarizes the development of Veamy, an object-oriented C++ library for the virtual element method (VEM) on general polygonal meshes, whose modular design is focused on its extensibility. The linear elastostatic and Poisson problems

Read More » Read More

Accepted Paper: Veamy: an extensible object-oriented C++ library for the virtual element method

December 24, 2018
Comments off

Paper Accepted for Publication in Numerical Algorithms Aleandro Ortiz-Bernardin, Catalina Alvarez, Nancy Hitschfeld-Kahler, Alessandro Russo, Rodrigo Silva-Valenzuela, Edgardo Olate-Sanzana, “Veamy: an extensible object-oriented C++ library for the virtual element method” ABSTRACT This paper summarizes the development of Veamy, an object-oriented C++ library for the virtual element method (VEM) on general polygonal meshes, whose modular design is

Read More » Read More

Release of VEMLab v2.2.1 (now it runs in Octave!)

October 20, 2018
Comments off

VEMLab: a MATLAB library for the virtual element method Release of VEMLab v2.2.1 >> From VEMLab v2.2 to VEMLab v2.2.1: Add option to explicitly switch off all MATLAB figures in function “plot_and_output_options.m”. Facilitate compatibility to run VEMLab in Octave. Update manual with a guide to running VEMLab in Octave. Browse and get the code

Read More » Read More

Enhancing the robustness of meshfree Galerkin methods for solid mechanics simulations using the virtual element decomposition

October 11, 2018
Comments off

2018 – 2021 Principal Investigator: Alejandro Ortiz-Bernardin. Project funded by CONICYT-FONDECYT (Grant Nº 1181192) Meshfree methods have several attributes that make them attractive for simulation in mechanics. Two important ones are summarized as follows. The meshfree approximation is independent of the definition of a finite element mesh — the approximation is constructed based solely on nodal locations.

Read More » Read More

Improving algorithms for the generation of polygonal and polyhedral meshes

October 11, 2018
Comments off

2018 – 2021 Principal Investigator: Nancy Hitschfeld-Kahler. Co-Investigator: Alejandro Ortiz-Bernardin. Project funded by CONICYT-FONDECYT (Grant Nº 1181506) This project is centered on the design and implementation of novel polygonal and polyhedral meshing strategies that can be used to solve several scientific and engineering problems such as fracture mechanics simulations in solid mechanics, landscape representation for hydrological distributed

Read More » Read More

Release of VEMLab v2.2

October 8, 2018
Comments off

VEMLab: a MATLAB library for the virtual element method Release of VEMLab v2.2 >> From VEMLab v2.1 to VEMLab v2.2: Fix disp() in plot_and_ouput_options.m: disp(“Hello”) seems to work only in newer versions of MATLAB. So, it is changed to the standard MATLAB format disp(‘Hello’). Results that are postprocessed in the graphical user interface of GiD

Read More » Read More

Release of Veamy v2.1

September 15, 2018
Comments off

Veamy: an extensible object-oriented C++ library for the virtual element method Release of Veamy v2.1 >> From Veamy v2.0 to Veamy 2.1: Add several test files for testing Feamy, the FEM module of Veamy. Fix some bugs. Update Veamy Primer: more details are added to sections devoted to using external mesh files (PolyMesher mesh and

Read More » Read More

On the behaviour of spherical inclusions in a cylinder under tension loads

July 31, 2018
Comments off

Ingenius Vol. 19, pp. 69-78, 2018 S. Montero, R. Bustamante, A. Ortiz-Bernardin Abstract In the present paper the behaviour of a hyperelastic body is studied, considering the presence of one, two and more spherical inclusions, under the effect of an external tension load. The inclusions are modelled as nonlinear elastic bodies that undergo small strains.

Read More » Read More

Accepted Paper: A volume-averaged nodal projection method for the Reissner-Mindlin plate model

July 31, 2018
Comments off

Paper Accepted for Publication in Computer Methods in Applied Mechanics and Engineering A. Ortiz-Bernardin, Philip Köbrich, Jack S. Hale, Edgardo Olate-Sanzana, Stéphane P. A. Bordas, Sundararajan Natarajan, “A volume-averaged nodal projection method for the Reissner-Mindlin plate model.” ABSTRACT We introduce a novel meshfree Galerkin method for the solution of Reissner-Mindlin plate problems that is written in

Read More » Read More