Results 71 to 80 of about 4,749 (165)

Upscaling the Strength Domain of Heterogeneous Cohesive‐Frictional Materials via a General FFT‐Based Limit Analysis Approach

International Journal for Numerical Methods in Engineering, Volume 127, Issue 12, 30 June 2026.
ABSTRACT Limit analysis and yield design provide a well‐defined mathematical framework for upscaling the strength properties of heterogeneous materials. These techniques can be incorporated into an FFT‐based computational micromechanics framework to evaluate the strength of heterogeneous materials, based on images of their microstructure.
Elodie Donval, Matti Schneider
wiley   +1 more source

Experimental Study and Numerical Simulation of Cutting and Tearing of Silicone Rubber using Extended Finite Element Method [PDF]

Journal of Applied and Computational Mechanics
Failure of soft materials is a fundamental challenge due to the strongly nonlinear and dissipative deformation involved. An experimental and extended finite element study of dynamic crack in silicone rubber are investigated.
Marwa Gzaiel, Ennouri Triki, Abdelwahed Barkaoui   +2 more
doaj   +1 more source

Study on fracture parameter calibration and failure characteristics of rock with hole and crack

Deep Underground Science and Engineering, Volume 5, Issue 2, Page 597-614, June 2026.
The SIF and plastic zone equations for a single hole and crack have been derived. The model's failure state leads to the identification of four types of cracks. The plastic zone increases with increased brittleness and decreased crack length. Abstract Cracks within the surrounding rock of roadways significantly affect their stability and failure ...
Shaochi Peng, Wensong Wang
wiley   +1 more source

Numerical Fatigue Analysis for Crack Propagation on Ti6Al4V Panel Using XFEM Method

Macromolecular Symposia, Volume 415, Issue 3, June 2026.
ABSTRACT The aim of this work is the validation of a numerical model based on the XFEM method for the prediction of crack propagation in mechanical components subjected to cyclic loads. Through careful bibliographic research, it was decided to take as a case study the analysis of the propagation of a crack passing through a panel in an additive ...
Ciro Coscione, Francesco Caputo, Giuseppe Lamanna   +2 more
wiley   +1 more source

On Some Problems in Determining Tensile Parameters of Concrete Model from Size Effect Tests

Polish Maritime Research, 2019
The paper presents results of numerical simulations of size effect phenomenon in concrete specimens. The behaviour of in-plane geometrically similar notched and unnotched beams under three-point bending is investigated.
Marzec Ireneusz, Bobiński Jerzy
doaj   +1 more source

XFEM with global enrichment for 3D cracks [PDF]

, 2015
We present an extended finite element method (XFEM) based on fixed area enrichment which 1) suppresses the difficulties associated with ill-conditioning, even for "large" enrichment radii; 2) requires 50 times fewer enriched degrees of freedom (for a ...
Agathos, Kostas, Chatzi, Eleni, BORDAS, Stéphane, Talaslidis, Demosthenes   +3 more
core   +1 more source

XFEM composite failure criterion and ABAQUS implementation considering soil crack characteristics

Yantu gongcheng xuebao
There are a large number of tension-shear composite cracks in various geotechnical structures. However, due to the complex characteristics of soil materials, it is difficult for traditional numerical methods to accurately simulate the composite failure ...
YU Peng 1, CHENG Shijie 1, YU Jialin 2, YU Yuzhen 3, ZHANG Dongming 4, WU Libo 1, DENG Shaohui 4
doaj   +1 more source

Using of XFEM With Meshing Type-T3 for Orthotropic FGM Plate With A Center Crack Parallel to the Material Gradation Under Fixed Grip Loading

Al-Qadisiyah Journal for Engineering Science, 2015
An improved approach for modeling discrete cracks in two-dimensional anisotropic functional graded materials FGMs by XFEM is described. A general node meshing type-T3 with sub-triangle technique for enhancing the Gauss quadrature accuracy near the crack ...
Hassanein Ibraheem Khalaf, Ameen Ahmed Nassar   +1 more
doaj  

A new impact test for the identification of a dynamic crack propagation criterion using a gas-gun device [PDF]

, 2006
The modelling of damage and fracture behaviour under high rates of loadings for metallic structures presents the more and more interests for engineering design, especially for crash phenomena.In order to perform a numerical simulation of such phenomena a
I. Nistor, Pantalé, Olivier, Nistor, Ionel, S. Caperaa, Caperaa, Serge, O. Pantalé   +5 more
core   +1 more source

Fracture Toughness Calculation Method Amendment of the Dissimilar Steel Welded Joint Based on 3D XFEM

Metals, 2019
The dissimilar steel welded joint is divided into three pieces, parent material−weldmetal−parent material, by the integrity identification of BS7910-2013.
Yuwen Qian, Jianping Zhao
doaj   +1 more source