The present paper is concerned with modelling damage and fracture in notched woven fabric composites. Previous experimental work has shown that, under tensile loading, damage at a notch in a variety of GFRP and CFRP composites based on woven fabric reinforcement comprises matrix damage and fibre tow fracture along the plane of maximum stress. It is these experimental observations that inform th...

In this paper, the extended finite element method (XFEM) is first applied to account for weak discontinuity of axisymmetric electrostatic field. Firstly, interface between two materials in an described by level set method. The enrichment function used modify shape elements. Secondly, illustrate feature function, distribution diagrams functions sub-elements are drawn. 3D field can be simplified ...

Abstract Crack in polymer bonded explosive (PBX) components will influence the safety and reliability of weapon system. In order to accurately simulate quasi-static fracture behavior PBX components, arc Brazilian experiment was carried out first. Then, phase field method (PFM) traditional extended finite element (XFEM) are used for comparative simulation Brazil test process, which both maximum ...

There is a wide range of virtual reality (VR) applications that benefit from physically based modeling, such as assembly simulation, robotics, training and teaching (e.g., medical, military, sports) and entertainment. The dynamics of rigid bodies is well understood and several open source as well as commercial physics engines supporting articulated rigid bodies and particle systems are availabl...

In order to simulate and analyze the cracking process of asphalt concrete beam specimens under loading, elastic modulus, strength fracture energy were measured through direct tensile test three-point bending test. Then, Cohesive zone model (CZM) extended finite element method (XFEM) utilized crack propagation specimen numerical simulation results compared analyzed. The show that can be well sim...

We propose an extrinsic, continuous-Galerkin (CG), extended finite element method (XFEM) that allows multiple Heaviside enrichments within a single in hierarchical manner. This approach enables complex, evolving XFEM surfaces 3D cannot be captured using existing CG-XFEM approaches. describe implementation of the for static elasticity with linearized strain modeling open cracks as salient step t...

In this work the influence of considering wheel-rail contact creepages on fatigue crack growth rates due to Rolling Contact Fatigue (RCF) is studied. For purpose, FASTSIM algorithm, which considers moving complex pressure distribution with slipping and adhesion zones patch, has been implemented in Abaqus using FORTRAN code subroutines. The developed methodology validated a 60E1 rail profile mod...

The aim of the study was to find the optimum combination of materials and thicknesses to provide a tough, damage resistant multi-layer system with numerical methods to restore the damaged teeth. Extended Finite Element Method (XFEM) was used to assess the critical loads for the onset of damage modes such as radial cracks and plastic deformation in dental prostheses, which consist of a brittle o...

TheG-function approach to premixed combustion problems is based on the flamelet concept. Thereby, the flame front is modeled as an embedded interface within the bulk. A level set function is used to describe the position of the flame front. To account for discontinuities in the velocity and the pressure fields across the interface, an eXtended Finite Element Method (XFEM) is applied. That is, t...