This paper presents the implementation of eXtended Finite Element Method (XFEM) in general-purpose commercial software package COMSOL Multiphysics for multi-field thermo-hydro-mechanical problems discontinuous porous media. To this end, an exclusive enrichment strategy is proposed compliance with modeling structure. modules and physics interfaces are adopted to take account relevant physical pr...

Outcomes for neurosurgery patients can be improved by enhancing intraoperative navigation and guidance. Current navigation systems do not accurately account for intraoperative brain deformation. So far, most studies of brain deformation have focused on brain shift, whereas this paper focuses on the brain deformation due to retraction. The heart of our system is a 3D nonrigid registration techni...

Strain-based design (SBD) plays an important role in pipeline and assessment of pipelines subjected to geo-hazards. Under such hazards, a pipe can be substantial plastic strains, leading tensile failure at locations girth weld flaws. For SBD, the finite element method (FEM) reliable tool calculate strain capacity (TSC) for better pipelines. This study aims investigate ductile fracture propertie...

In recent years, the scientific community has shown a growing interest in fiber-reinforced concrete (FRC) for modern structures due to its enhanced ductility compared traditional reinforced (RC). This paper introduces an analytical model that incorporates comprehensive fiber reinforcing index (RI) study various types of FRC. The analysis focuses on compressive and tensile behaviors, damage evol...

Hydraulic fracturing is a complex nonlinear hydro-mechanical coupled process. Accurate numerical simulation of great significance for reducing costs and improving reservoir development benefits. The aim this paper to propose an efficient method the fracturing-to-production problem under unified framework that has good convergence accuracy. A model (HMFM) established poroelastic media saturated ...

We consider a standard model for incompressible two-phase flows in which a localized force at the interface describes the effect of surface tension. If a level set (or VOF) method is applied then the interface, which is implicitly given by the zero level of the level set function, is in general not aligned with the triangulation that is used in the discretization of the flow problem. This non-a...

In order to analyze the anti-reflective cracking performance of a full-depth asphalt pavement and study propagation process reflection crack its influencing factors, mechanical model structural analysis was established based on ABAQUS finite element software extended method (XFEM). Based two different loading modes three-point bending direct tension, is analyzed. The results show that better th...

This study concentrates on FEA modelling of concrete beam strengthened with externally bondedCFRP lates under bending by using Traction Separation Law (TSL) as constitutive law to require maximum cohesive stress and fracture energy values. The models were developed following experimental work reported Al-Rousan et al. [23] Ding [22]. Combination two numerical techniques adopted, i.e., Extended ...