A review of energy loss reduction technologies for internal combustion engines to improve brake thermal efficiency

Z Wang, S Shuai, Z Li, W Yu - Energies, 2021 - mdpi.com
Today, the problem of energy shortage and climate change has urgently motivated the
development of research engaged in improving the fuel efficiency of internal combustion …

Reliability analysis of fatigue crack growth for rail steel under variable amplitude service loading conditions and wear

RM Nejad, Z Liu, W Ma, F Berto - International Journal of Fatigue, 2021 - Elsevier
The purpose of this paper is to investigate the effect of variable amplitude service loading
conditions and wear phenomenon on reliability analysis for rail steel. For this purpose, the …

Artificial neural network based fatigue life assessment of friction stir welding AA2024-T351 aluminum alloy and multi-objective optimization of welding parameters

RM Nejad, N Sina, DG Moghadam, R Branco… - International Journal of …, 2022 - Elsevier
In this paper, the fracture behavior and fatigue crack growth rate of the 2024-T351 aluminum
alloy has been investigated. At first, the 2024-T351 aluminum alloys have been welded …

Failure analysis of four-cylinder diesel engine crankshaft

K Aliakbari - Journal of the Brazilian Society of Mechanical Sciences …, 2019 - Springer
In this article, failure analysis was examined in four-cylinder light-duty truck diesel engine
crankshaft. The failure happened in service after 95,000 km of operation by fatigue crack …

Failure analysis of ductile iron crankshaft in compact pickup truck diesel engine

K Aliakbari, RM Nejad, TA Mamaghani, P Pouryamout… - Structures, 2022 - Elsevier
The crankshaft is one of the structural components of the engine that converts the linear
motion of the piston into rotational motion. In this study, the failure analysis of spheroidal …

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 …

Assessment of unusual failure in crankshaft of heavy-duty truck engine

K Aliakbari, RM Nejad, SKP Toroq, W Macek… - Engineering Failure …, 2022 - Elsevier
The unusual premature failure of a heavy-duty truck engine crankshaft has been the subject
of a rigorous study, and this manuscript describes it in detail. The failure was happened to …

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 …

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 …