The bones of elderly people with osteoporosis are susceptible to either traumatic fracture as a result of external impact, such as what happens during a fall, or even spontaneous fracture without trauma as a result of muscle contraction [1, 2]. Understanding the fracture behavior of bone tissue will help researchers find proper treatments to strengthen the bone in order to prevent such fracture...

Abstract The efficient simulation of complex fracture processes is still a challenging task. In this contribution, an enriched phase-field method for the 2D presented. It has potential to drastically reduce computational cost compared classical (PFM). based on combination approach with ansatz transformation and enrichment technique displacement field as it used in extended finite element (XFEM)...

A method combining crystal plasticity (CP), the eXtended Finite Element Method (XFEM), and cohesive zone model (CZM) with traction separation law is developed for an Al-Cu-Mg alloy to predict effect of grain orientation on fatigue crack propagation (FCP) during stage ?? within a single crystal. The simulation results show that all orientations, Goss possesses largest deflection, then followed b...

The present work deals with the effect of an external circumferential elliptical crack located at thickness transition on a varied stepped diameter pipe . The purpose is the application of the extended finite element method (XFEM) for the calculation of SIF at the thickness transition region of pipe considering internal pressure and compare the effect of the crack between pipes straight and wi...

Deformable fractured porous media appear in many geoscience applications. While the extended finite element (XFEM) has been successfully developed within computational mechanics community for accurate modeling of deformation, its application natural geoscientific applications is not straightforward. This mainly due to fact that subsurface formations are heterogeneous and span large length scale...

The integrity assessment to evaluate the safety margin of reactor pressure vessels (RPV) often considers only crack initiation and excludes propagation analysis. This contribution focuses on analysis in RPV steels. eXtended Finite Element (XFEM) method implemented ABAQUS is applied a thick-walled cylindrical specimen with circumferential at inner surface order simulate embrittled subjected Pres...

The paper investigates the fatigue crack growth in typical bridge weldments by means of numerical analysis. extended finite element (XFEM) method is coupled with low-cycle (LCF) approach ABAQUS, and parametric analyses are carried out order to assess influence main sample/testing features on life investigated structures. results found be robust reliable performing comparisons past experimental ...

• The variable-node multiscale extended finite element method (V-XFEM) is elaborated for the dynamic crack analysis of linearly uncoupled and coupled physical phenomena in a compact formula. numerical results elastic piezoelectric problems considered as illustrated examples show that V-XFEM has higher accuracy more efficiency than standard XFEM. For structures, normalized intensity factors have...

In this presentation we will discuss a continuum multiscale framework which combines the Bridging Domain Method (BDM) of Xiao and Belytschko [1] with the eXtended Finite Element Method (XFEM) of of Moës et al. [2]. The BDM is a hierarchical overlapping domain decomposition scheme. Material in the coarse-scale domain is modelled as a continuum using XFEM and in the fine-scale domain by Molecular...