# Comparison of SGBEM-FEM Alternating Method and XFEM Method for Determining Stress Intensity Factor for 2D Crack Problems

## Related Articles

- Stress Intensity Factors for Plates with Collinear and Non-Aligned Straight Cracks. Surendran, M.; Palani, G. S.; Iyer, Nagesh R. // World Academy of Science, Engineering & Technology;Oct2012, Issue 70, p1173
Multi-site damage (MSD) has been a challenge to aircraft, civil and power plant structures. In real life components are subjected to cracking at many vulnerable locations such as the bolt holes. However, we do not consider for the presence of multiple cracks. Unlike components with a single...

- Closed form solution of stress intensity factors for cracks emanating from surface semi-spherical cavity in finite body with energy release rate method. Wan, Hualiang; Wang, Qizhi; Zhang, Xing // Applied Mathematics & Mechanics;Dec2016, Vol. 37 Issue 12, p1689
In this paper, a new semi-analytical and semi-engineering method of the closed form solution of stress intensity factors (SIFs) of cracks emanating from a surface semi-spherical cavity in a finite body is derived using the energy release rate theory. A mode of crack opening displacements of a...

- Stress intensity factors for high aspect ratio semi-elliptical external surface cracks in cylindrical vessels. Ql Hong-yu; GUO Peng-chao // Advanced Materials Research;2014, Vol. 986-987, p882
External surface cracks can occur in cylindrical vessels due to damage and propagate in the manufacturing process and during service life. Most of research focuses on stress intensity factors for surface cracks with low aspect ratios, i.e., a/c <1.0. Situation may well arise where the aspect...

- Effects of variation of material properties on the stress intensity factors of cracked anisotropic bodies. Sahli, A.; Nourine, L.; Boutchicha, D.; Kebdani, S.; Rahmani, O. // MatÃ©riaux et Techniques;2015, Vol. 103 Issue 2, p1
This paper presents a two-dimensional parametric study of the behavior of uniformly cooled homogeneous linear elastic anisotropic bodies containing cracks using the boundary element method (BEM). The present work investigates the effects of varying material properties, and varying orientation of...

- Mode I Stress Intensity Factors for triangular corner crack nearby intersecting of cylindrical holes. Salvati, E.; Livieri, P.; Tovo, R. // Frattura e Integrita Strutturale;2013, Issue 26, p80
The paper deals with the Stress Intensity Factor assessment of cracks at the intersection of holes loaded by internal pressure. Triangular flaws are considered at the intersection of two holes inside a specific specimen. The research examines the influence of hole diameter ratio D1/D2 and the...

- A new formulation for estimating maximum stress intensity factor at the mid plane of a SENB specimen: Study based on 3D FEA. Kudari, S. K.; Kodancha, K. G. // Frattura e Integrita Strutturale;2014, Vol. 8, p419
In this investigation, three-dimensional elastic finite element analyses have been conducted to compute the stress intensity factor (KI ) in a SENB specimen with varied thickness (B) and crack-length to width ratio (a/W). The results indicate that the magnitude of KI depends on B, and...

- Combining experimental and numerical analysis to estimate stress fields along the surface crack front. Chernyatin, A. S.; Matvienko, Yu. G.; Razumovsky, I. A. // Frattura e Integrita Strutturale;2013, Issue 25, p15
Combining experimental and computational method for determination of the singular and the nonsingular stress terms along the front of the 3D surface crack is proposed. Evaluation of the terms is based on comprehensive comparison between deformation responses (for measurement points on the...

- Two Parameter Description of Crack Tip Stress Fields for Wedge Splitting Test Specimen: Influence of Wedge Angle. Seitl, Stanislav; Bermejo, Carlos; Sobek, Jakub; Veselý, Václav // Advanced Materials Research;2014, Vol. 969, p345
Two parameter fracture mechanics uses for description of the crack tip stress fields, not only the stress intensity factor (SIF), but the second term of Williams expansion the T-stress. In the paper, the SIF and T-stress of typical wedge splitting specimens with usual loading arrangements...

- Research on Stress Intensity Factor of the Interface Crack in the Hard Cladding Material Structure under Mechanical Impact Load. Junru Yang; Ran Zhu; Gongling Chen; Yuekan Zhang // Key Engineering Materials;2014, Vol. 589/590, p384
In the paper, the crack parallel to and lying on the interface in the hard cladding material structure is regarded as the research object, theoretical model of the stress intensity factor (SIF) of the interface crack under the mechanical impact load is built. Based on it, the SIF of the crack...