Modeling complex material failure with competing mechanisms is a difficult task that often leads to mathematical and numerical challenges. This work contributes to the study of localized failure mechanisms by means of phase ...

The modeling of the post-critical behavior of materials is still a scientific challenge. This is especially true when dealing with materials that undergo complex behavior, in which several mechanisms are combined. This ...

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 ...

The formulation of a phase-field continuum theory for brittle fracture in elastic–plastic solids and its computational implementation are presented in this contribution. The theory is based on a virtual-power formulation ...

We apply a fourth order phase-field model for fracture based on local maximum entropy (LME) approximants. The higher order continuity of the meshfree LME approximants allows to directly solve the fourth order phase-field ...

Nos modelos de degradação elástica, a trinca é considerada de maneira distribuída, e a energia liberada devido ao seu crescimento é controlada pela energia de fratura e outros parâmetros do material, como os limites de ...

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 ...

O estudo da fissuração de um elemento estrutural é importante. Nesse estudos a trinca pode ser modelada com a abordagem discreta ou contínua. O modelo de campos de fases é um modelo de trinca contínua que adiciona uma ...

Improving the durability and sustainability of concrete structures has been driving the enormous number of research papers on self-healing mechanisms that have been published in the past decades. The vast developments of ...

A phase-field theory of brittle fracture in elastoplastic solids hosting mobile interstitial solute species is developed in this paper. The theory, which is formulated within the framework of modern continuum mechanics, ...