Residual stress and distortion during quench hardening of steels: a review

A Samuel, KN Prabhu - Journal of Materials Engineering and Performance, 2022 - Springer
Quench hardening is a widely used heat treatment process for achieving better mechanical
properties in carbon steels. However, when high quench-sensitivity steel components …

Probabilistic framework for fatigue life assessment of notched components under size effects

D Liao, SP Zhu, B Keshtegar, G Qian… - International Journal of …, 2020 - Elsevier
Structural integrity assessments with discontinuities are critical for ensuring operational life
and reliability of engineering components. In this work, through combining with the …

Effect of wear on rolling contact fatigue crack growth in rails

RM Nejad, M Shariati, K Farhangdoost - Tribology International, 2016 - Elsevier
The purpose of this paper is to analyze the influence of the load direction and the
phenomenon of wear on rolling contact fatigue crack growth. For this purpose, a UIC60 rail …

On fatigue life prediction of Al-alloy 2024 plates in riveted joints

RM Nejad, F Berto, G Wheatley, M Tohidi, W Ma - Structures, 2021 - Elsevier
The purpose of this paper is to numerically investigate the fatigue life and the fatigue crack
growth path of 2024 aluminum plate riveted joints. For this purpose, according to field …

Fatigue fracture and fatigue life assessment of railway wheel using non‐linear model for fatigue crack growth

RM Nejad, F Berto - International Journal of Fatigue, 2021 - Elsevier
In this paper, the fatigue behavior of railway wheel specimens subjected to cyclic loading
have been investigated via experimental tests and numerical analysis. The material …

Numerical study on rolling contact fatigue in rail steel under the influence of periodic overload

RM Nejad - Engineering Failure Analysis, 2020 - Elsevier
Fatigue crack is one of the most common defects in railway system. Fatigue crack growth
may lead to wheel and rail failure and damage to other components. In this paper, by …

Prediction of fatigue crack propagation and fractography of rail steel

RM Nejad, M Shariati, K Farhangdoost - Theoretical and applied fracture …, 2019 - Elsevier
The aim of the present research is to determine the initiation and propagation of cracks and
its geometric specifications. Metallurgical factors, especially the non-metallic inclusions have …

Experimental and numerical investigation of fatigue crack growth behavior and optimizing fatigue life of riveted joints in Al-alloy 2024 plates

RM Nejad, M Tohidi, AJ Darbandi, A Saber… - Theoretical and Applied …, 2020 - Elsevier
The purpose of this paper is to investigate the crack growth and fatigue life estimation of the
optimized rivet joints in aluminum 2024 sheets numerically and experimentally. For this …

Numerical study on fatigue crack growth in railway wheels under the influence of residual stresses

RM Nejad, K Farhangdoost, M Shariati - Engineering Failure Analysis, 2015 - Elsevier
Accurate prediction of fatigue crack growth on railway wheels and the influence of residual
stresses by finite element method (FEM) modeling can affect the maintenance planning …

Residual stress measurement by strain gauge and X-ray diffraction method in different shaped rails

ME Turan, F Aydin, Y Sun, M Cetin - Engineering Failure Analysis, 2019 - Elsevier
It is well known that rails are the most important part of railway infrastructure. Besides good
wear and fatigue resistance, appropriate residual stress value in rails is required to improve …