Phase-field modelling of cohesive fractureCohesive-zone modelPhase-field modelSmeared-crack modelsStabilityVariational methodIn phase-field models the damage evolution problem is considered as a minimisation problem of a Griffith-like energy functional, governed by the principles of irreversibility, stability...
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 issue of
In this work, the phase-fieldcohesive zone model ( PF-CZM ) is adopted as the prototype model to address fracture in various multi-physicsproblems, e.g., the thermo-mechanical, chemo-mechanical, chemo-thermo-mechanical, electro-mechanical, etc.The relevant theoretical and numerical aspects are ...
? 2024The modeling of mixed-mode fracture within the phase field (PF) framework poses a challenge due to the difficulties in incorporating a reasonable mixed-mode cohesive law. This work proposes an innovative phase-field formulation to characterize mixed-mode cohesive fracture behaviors in fiber-rei...
Computational modelling of fracture constitutes an indispensable tool not only to predict the failure of cracking structures but also to shed insights into understanding the fracture processes of many materials such as concrete, rock, ceramic, metals and biological soft tissues. This manuscript provides ...
fracture mechanics or the cohesive zone model at the element boundaries [28,29]. The discontinuities can also be addressed by employing the embedded strong discontinuity approach and the extended FE method at the intra-element level [30,31,32]. While the linear elastic fracture mechanics and ...
Phase-field method (PFM) has become a mainstream computational method for predicting the evolution of nano and mesoscopic microstructures and properties during materials processes. The paper briefly reviews latest progresses in applying PFM to understanding the thermodynamic driving forces and mechanisms unde...
Mixed-mode fracture摘要 One of the fundamental but unsolved problems in the phase-field theory is how to obtain the energy density expression based on an arbitrary cohesive law. In this paper, we propose a phase-field model with the energy density determined by the cohesive law with an arbitra...
In this work, a phase field approach to modelling fracture in asphalt mixtures is presented. More specifically, a cohesive zone-based phase field model is ... A Ahmed,R Khan - 《International Journal of Pavement Engineering》 被引量: 0发表: 2022年 加载更多来源...
The complex degradation of metallic materials in aggressive environments can result in morphological and microstructural changes. The phase-field (PF) method is an effective computational approach to understanding and predicting the morphology, phase cha