2026· E3S Web of Conferences· Vol 726, pp. 01001· 0 citations· 8 references
Abstract
This study investigates the fracture behavior of pressure equipment under static loading by comparing analytical solutions, conventional FEM, and XFEM. Cylindrical and spherical structures with semi-elliptical surface cracks are analyzed to evaluate the effects of crack geometry and structural curvature on the stress intensity factor (KI). Results show that XFEM accurately captures crack behavior without complex remeshing, closely matching analytical solutions (deviation <1%), whereas FEM reliability depends strongly on mesh refinement near the crack. The stress intensity factor increases with relative crack depth (a/t) and structural curvature (decreasing R/t), with spherical structures exhibiting higher KI than cylindrical ones. Overall, the study demonstrates XFEM's efficiency for assessing structural integrity and guiding the design of safer pressure equipment in energy and environmental applications.
The presence of a bimaterial interface significantly modifies the crack‐tip stress field and, consequently, can influence crack behavior and deflect the crack‐propagation path. Developing models capable of accurately capturing interface effects is therefore essential for a reliable understanding of interacting multic...
K. Nasri, A. El-Bakari, M. Tahiri et al.· Fatigue & Fracture of En...· 0 citations
To address the safety assessment of stiffened plates with multiple cracks, this study proposes a numerical and intelligent prediction method for interference effects of through double cracks. Based on linear elastic fracture mechanics, an ABAQUS-FRANC3D co-simulation model is established to calculate stress intensity f...
Jin-Bo Huang· Twelfth International Confer...· 0 citations
Linear elastic fracture mechanics (LEFM) allows for the analysis of crack propagation by combining remote stress fields in the solid with stress intensity factors (SIFs) obtained for specific crack configurations. To date, the use of tabulated SIFs has greatly facilitated the calculation of crack propagation in vario...
Unai Eibar, A. Dorronsoro, J. Martínez-Esnaola· Fatigue & Fracture of En...· 0 citations
The inhomogeneity and anisotropy in orthotropic bodies make their analysis and damage
mechanisms more important and complex. To simplify the analysis and facilitate numerical
implementation, we assume that the material is homogeneous. This assumption allows us to
use classical analytical models while maintaining a cons...
Lina Saifi, Z. Labed· ITEGAM- Journal of Engineeri...· 0 citations
The free vibration analysis of a bidirectional functionally graded (2D-FG) curved structure with a through-thickness longitudinal central crack is performed in the current analysis. The model employs higher-order displacement theory for kinematics, taking into consideration both situations with even and uneven porosi...
Prashik Malhari Ramteke, K. Maitra, Hukum Chand Dewangan· International Journal of App...· 0 citations
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