Study of stress intensity factors in sliding and tearing modes for subsurface elliptical cracks in rolling train wheels

R Seifi, M Asadi - Fatigue & Fracture of Engineering Materials & …, 2023 - Wiley Online Library
In the railway systems, induced contact between wheels and rails creates maximum shear
stress around the contact surfaces. These shear stresses vary with the wheel's rolling and …

Investigation of the crack initiation of subsurface rolling contact fatigue in railway wheels

D Zeng, T Xu, J Wang, L Lu, W Meng, B Jiang… - International Journal of …, 2020 - Elsevier
To investigate the crack initiation behaviour of the subsurface rolling contact fatigue (RCF) of
railway wheels, a novel experimental procedure was developed to determine the actual …

The effect of material defect orientation on rolling contact fatigue of a ball bearing

A Ghazanfari Holagh, J Alizadeh Kaklar - Scientific Reports, 2023 - nature.com
In this study, finite element method (FEM) is applied to investigate the effect of material
defect orientation on subsurface crack initiation in rolling bearings. First, the history of stress …

Approximate stress intensity factors for a semi-circular crack in an arbitrary structure under arbitrary mode I loading

JA Kaklar, HS Googarchin - Theoretical and Applied Fracture Mechanics, 2018 - Elsevier
Abstract Approximate Stress Intensity Factors (SIFs) for a semi-circular surface crack in
arbitrary elastic finite and infinite bodies are presented. Utilizing General Point Load Weight …

Propagation pattern for a two-dimensional subsurface crack under a moving contact pressure

F Samadlou, JA Kaklar - Engineering Fracture Mechanics, 2020 - Elsevier
In the present study, weight function (WF) method was used to investigate the propagation
pattern of a two-dimensional parallel subsurface crack under a moving contact pressure …

A new weight function for one‐dimensional subsurface cracks under general loading

A Abdoli, J Khezri… - Fatigue & Fracture of …, 2020 - Wiley Online Library
In the present study, weight functions (WFs) of a subsurface crack were derived by
proposing a new general form for approximate one‐dimensional WF. The WFs coefficients …

Crack growth pattern prediction in a thin walled cylinder based on closed form thermo-elastic stress intensity factors

MA Niasani, R Ghajar, HS Googarchin… - Journal of Mechanical …, 2017 - Springer
Circumferential crack growth pattern in a thin-walled cylinder is studied. Thermo-elastic
stresses in a cylinder subjected to thermomechanical loads are extracted. Closed form …

Practical applications of numerical procedures for structural integrity assessment

SD Pastrama, PMGP Moreira, PMST de Castro - Procedia Engineering, 2015 - Elsevier
The paper presents two practical applications in which the weight function method is used to
determine the stress intensity factor as the main structural integrity assessment parameter in …

تحلیل ترک زیرسطحی کاملاً بسته با استفاده از ماتریس تابع وزن دوبعدی

جواد علیزاده کاکلر - مهندسی مکانیک دانشگاه تبریز, 2016‎ - tumechj.tabrizu.ac.ir
یکی از انواع ترک‌های مشاهده شده در شرایط خستگی تماس غلتشی، ترک‌های زیرسطحی بیضوی
هستند. بروز پدیده کوپلینگ مودهای شکست و بسته شدن سطوح ترک، این ترک‌ها را از سایر انواع آن …