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Local Maximum Entropy Material Point Method applied to quasi-brittle fracture
(Pergamon-Elsevier Science Ltd, 2021-01)
This work aims to introduce an alternative technique to address the fracture process of brittle and quasi-brittle materials under the Material Point Method (MPM) framework. With this purpose the eigensoftening algorithm, ...
Phase-field modeling of fracture for quasi-brittle materials
(2018)
Abstract This paper addresses the modeling of fracture in quasi-brittle materials using a phase-field approach to the description of crack topology. Within the computational mechanics community, several studies have treated ...
Modelling crack growth in quasi-brittle materials using mesh fragmentation technique
(Univ Sevilla, 2015-01-01)
The modelling of discontinuities with new finite element techniques (X-FEM and E-FEM) is cumbersome due to the need of algorithm tracking to simulate the crack growth. Therefore, a new technique to capture strong discontinuities ...
On the use of finite elements with a high aspect ratio for modeling cracks in quasi-brittle materials
(2016-03-01)
A new technique for modeling cracks in quasi-brittle materials based on the use of interface solid finite elements is presented. This strategy named mesh fragmentation technique consists in introducing sets of standard ...
An alternative bilinear peridynamic model to simulate the damage process in quasi-brittle materials
(Pergamon-Elsevier Science Ltd, 2019-07)
The study of damage process in quasi-brittle materials (such as plain or reinforced concrete and composites formed by a brittle matrix with ductile filler) is a challenge for researchers, especially when neither linear ...
Gradient and fracture energy-based plasticity theory for quasi-brittle materials like concrete
(Elsevier Science Sa, 2009-12)
In this work a thermodynamically consistent non-local gradient and fracture energy-based plasticity theory is proposed to simulate the failure behavior of concrete. The model incorporates two characteristic lengths, one ...
A micromechanics-based variational phase-field model for fracture in geomaterials with brittle-tensile and compressive-ductile behavior
(2022)
This paper presents a framework for modeling failure in quasi-brittle geomaterials under different loading conditions. A micromechanics-based model is proposed in which the field variables are linked to physical mechanisms ...
Non-linear boundary element formulation with tangent operator to analyse crack propagation in quasi-brittle materials
(ELSEVIER SCI LTD, 2010)
This work deals with analysis of cracked structures using BEM. Two formulations to analyse the crack growth process in quasi-brittle materials are discussed. They are based on the dual formulation of BEM where two different ...
Um modelo constitutivo de dano composto para simular o comportamento de materiais quase-frágeis
(Universidade Estadual Paulista (Unesp), 2011-03-21)
No presente trabalho desenvolve-se um modelo constitutivo baseado na mecânica do dano contínuo para representar o comportamento de materiais que apresentam diferentes respostas quando solicitados à tração ou à compreensão. ...
Um modelo constitutivo de dano composto para simular o comportamento de materiais quase-frágeis
(Universidade Estadual Paulista (Unesp), 2011-03-21)
No presente trabalho desenvolve-se um modelo constitutivo baseado na mecânica do dano contínuo para representar o comportamento de materiais que apresentam diferentes respostas quando solicitados à tração ou à compreensão. ...