In 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 and energy balance. Herein, we consider phase-field models characterised by different degradation and energy dissipation...
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
This work paves the way for the PF modeling of fracture in FRCs that have previously been analyzed with sophisticated CZM-based approaches. 展开 关键词: Cohesive zone model Composite material Failure criteria Mixed-mode fracture Phase-field model ...
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 ...
The phase-field formulation is used to resolve the sharp crack surface topology ... N Noii,F Aldakheel,T Wick,... - 《Computer Methods in Applied Mechanics & Engineering》 被引量: 0发表: 2019年 Variational phase-field modeling of brittle and cohesive fracture This is the PDF version of ...
Furthermore, some phase-field formulations have been derived to study the rate-dependent fracture of solids [57,58,59,60]. In the case of polymer nanocomposites, Arash et al. [24,39] developed a phase-field formulation to study the nonlinear viscoelastic fracture behavior of BNP/epoxy nanocomp...
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 change and/or transformation of materials. PF models are...
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...
A phase field model for damage in asphalt concrete 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...