The SGBEM-FEM alternating method is compared with the recently popularized XFEM, for analyzing mixed-mode fracture and fatigue growth of 3D nonplanar cracks in complex solid and structural geometries. A large set of 3D examples with different degrees of complexity is analyzed by the SGBEM-FEM alternating method, and the numerical results are compared with those obtained by XFEM available in the...

The Generalized/eXtended Finite Element Method (G/XFEM) has been established as an approach to provide optimally convergent solutions for classes of problems that are challenging the standard version (FEM). For with non-smooth solutions, those within Linear Elastic Fracture Mechanics (LEFM) context, FEM convergence rates often not optimal and bounded by strength singularity in analytical soluti...

In this paper, we introduce an implementation of the extended finite element method for fracture problems within the finite element software ABAQUSTM. User subroutine (UEL) in Abaqus is used to enable the incorporation of extended finite element capabilities. We provide details on the data input format together with the proposed user element subroutine, which constitutes the core of the finite ...

Abstract. The present work investigates the fracturing behavior of an anisotropic layered geomaterial, known as Opalinus Clay (OPA). formation this rock is mainly related to a sedimentation process, where bedding planes correspond isotropy. OPA here studied because its good properties, primarily, low permeability and high adsorption capability, which make it perfect candidate for storage radioa...

A numerical implementation of the eXtended Finite Element Method (X-FEM) to analyze crack propagation in a structure under dynamic loading is presented in this paper. The arbitrary crack is treated by the X-FEM method without re-meshing but using an enrichment of the classical displacement-based finite element approximation in the framework of the partition of unity method. Several algorithms h...

This paper presents an immersed, isogeometric finite element framework to predict the response of multi-material, multi-physics problems with complex geometries using locally refined discretizations. To circumvent need generate conformal meshes, this work uses extended method (XFEM) discretize governing equations on non-conforming, embedding meshes. A flexible approach create truncated hierarch...

Fresh fruit micro-rupture generally occurs during mechanical handling, which severely affects the product’s postharvest quality along supply chain. An extended finite element (XFEM) model was developed for investigating fracture response of tomato under compression. A 1/4 modeled using three parts: exocarp, mesocarp and septa frame, pre-crack. amplitude curve-based uniformly distributed pressur...