All Outputs (41)

Influence of process parameters in powder bed fusion of 316L steel: A residual stress study (2024)
Journal Article

To maintain the structural integrity in additively manufactured samples, it is important to study the induced residual stresses which are widely ignored. Powder bed fusion (PBF) is a type of additive manufacturing process in which the metal powder is... Read More about Influence of process parameters in powder bed fusion of 316L steel: A residual stress study.

An approach to predicting corrosion fatigue for marine applications (2023)
Journal Article

Corrosion fatigue is one of the main failure mechanisms of components working in corrosive environments. As a result, the assessment of this phenomenon and taking it into account is of paramount importance in designing such components and particularl... Read More about An approach to predicting corrosion fatigue for marine applications.

Application of spherical macro-indentation for determination of plastic anisotropy and residual stresses using indentation geometry and inverse analysis (2023)
Journal Article

The simultaneous determination of mechanical properties and residual stresses using the instrumented indentation technique is more challenging when the anisotropic behaviour of a material is considered. If ignored, it may lead to inaccurate estimatio... Read More about Application of spherical macro-indentation for determination of plastic anisotropy and residual stresses using indentation geometry and inverse analysis.

Effect of surface roughness on brinell hardness and load-displacement curves using a macro indentation (2023)
Journal Article

Surface roughness significantly affects the scattering of load-displacement curves and the measurement of mechanical properties by the macro-scale indentation. Many mechanical properties such as modulus of elasticity, yield stress, strain hardening e... Read More about Effect of surface roughness on brinell hardness and load-displacement curves using a macro indentation.

An improvement in data interpretation to estimate residual stresses and mechanical properties using instrumented indentation: A comparison between machine learning and Kriging model (2022)
Journal Article

The instrumented indentation method has been introduced as an effective means of estimating surface residual stresses. This technique has also been widely utilized to measure mechanical properties of the materials. Most studies in recent years have b... Read More about An improvement in data interpretation to estimate residual stresses and mechanical properties using instrumented indentation: A comparison between machine learning and Kriging model.

Effects of water jet peening on residual stresses, roughness, and fatigue (2021)
Journal Article

Water jet peening is a surface modification technique which can introduce compressive residual stresses beneath the surface of the engineering components. In this paper, the effects of water jet peening process, in the absence of abrasive materials o... Read More about Effects of water jet peening on residual stresses, roughness, and fatigue.

Application of a portable indentation rig with Rockwell indenter to determine mechanical properties and residual stresses on an aluminum plate (2020)
Journal Article

Measuring residual stresses is still a dilemma in many engineering applications. It is even more crucial when the industrial requirements demand for a non-destructive technique in order to avoid compromising the structural integrity of the engineerin... Read More about Application of a portable indentation rig with Rockwell indenter to determine mechanical properties and residual stresses on an aluminum plate.

Residual stresses measurement in hollow samples using contour method (2020)
Journal Article

Residual stresses are created usually undesirably during manufacturing processes, including casting, welding, metal forming, etc. Residual stresses alone or in combination with other factors can cause the destruction and fracture of components or sig... Read More about Residual stresses measurement in hollow samples using contour method.

Shot peening effects on corrosion behavior of commercial pure titanium in body simulating solution (2019)
Journal Article

In this study, the effect of shot peening on the corrosion behavior and the microstructure of commercial pure titanium was studied. The experiments including measuring the compressive residual stresses created by shot peening using steel balls (0.3 m... Read More about Shot peening effects on corrosion behavior of commercial pure titanium in body simulating solution.

The effect of plugging of tubes on failure of shell and tube heat exchanger (2019)
Journal Article

In shell and tube heat exchangers, deep cracks can occur in tube-to-tubesheet welding and repairing such cracks is an impossible task which makes these tubes totally out of service. To preserve the thermal and mechanical integrity of heat exchanger,... Read More about The effect of plugging of tubes on failure of shell and tube heat exchanger.

An approach for Knoop and Vickers indentations to measure equi-biaxial residual stresses and material properties: A comprehensive comparison (2019)
Journal Article

A residual stress analysis is indispensable to anticipate engineering structure loading conditions. For this purpose, there are various methods, including indentation technique, a non-destructive test, which also enables us to measure material proper... Read More about An approach for Knoop and Vickers indentations to measure equi-biaxial residual stresses and material properties: A comprehensive comparison.

Shot peening effects on residual stresses redistribution of offshore wind monopile multi-pass weldments (2019)
Journal Article

In some industrial applications, welding is the only alternative to join different parts. However, the major problem in welded structures is the tensile residual stresses that are inevitably produced during welding process. Surface tensile stresses c... Read More about Shot peening effects on residual stresses redistribution of offshore wind monopile multi-pass weldments.

Effect of residual stress on failure of tube-to-tubesheet weld in heat exchangers (2019)
Journal Article

In a shell and tube heat exchanger, the failure of tube-to-tubesheet welds results in high-pressure water jet which erodes the refractory in front of the tubesheet. Finite element method was employed to simulate the welding process and post weld heat... Read More about Effect of residual stress on failure of tube-to-tubesheet weld in heat exchangers.

Measuring nonequibiaxial residual stresses and mechanical properties using Knoop indentation (2018)
Journal Article

A proper knowledge of the mechanical properties and residual stresses of materials has a significant role in the prediction of engineering failures. Indentation is a simple, nondestructive test that is capable of estimating both residual stresses and... Read More about Measuring nonequibiaxial residual stresses and mechanical properties using Knoop indentation.

Failure analysis of bolt connections in fired heater of a petrochemical unit (2018)
Journal Article

The main function of a fired heater in a petrochemical site is to produce supersaturated steam. Due to extremely difficult working conditions and high temperatures, there is a very high probability of failures in different parts of a fired heater. In... Read More about Failure analysis of bolt connections in fired heater of a petrochemical unit.

Effect of initial surface treatment on shot peening residual stress field: Analytical approach with experimental verification (2018)
Journal Article

Shot peening is the most common surface treatment employed to enhance the fatigue performance of structural metallic materials and often carried out after other surface treatments. This paper mainly focuses on the effects of initial conditions of sur... Read More about Effect of initial surface treatment on shot peening residual stress field: Analytical approach with experimental verification.

Determination of mechanical properties using sharp macro-indentation method and genetic algorithm (2017)
Journal Article

To determine mechanical properties, instrumented indentation is a non-destructive one where traditional methods (such as tensile test) are not accessible. However, there are several serious challenges when trying to correctly use this technique.

H... Read More about Determination of mechanical properties using sharp macro-indentation method and genetic algorithm.

A modification to the cross slitting method for measuring two components of residual stresses (2017)
Journal Article

Residual stresses measurement techniques are constantly modified and progressed. There have been many residual stresses measurement methods developed and practiced by researchers. Slitting method is one of the destructive techniques that can measure... Read More about A modification to the cross slitting method for measuring two components of residual stresses.

Shot peening coverage effect on residual stress profile by FE random impact analysis (2016)
Journal Article

Shot peening is one of the most effective surface treatments for improving the fatigue strength of machine elements. In this paper, a new finite element-based model to predict the effect of coverage on the surface state is proposed and critically dis... Read More about Shot peening coverage effect on residual stress profile by FE random impact analysis.

Experimental measurement and analytical determination of shot peening residual stresses considering friction and real unloading behavior (2016)
Journal Article

This paper presents an analytical model to predict the residual stress distribution induced by Shot peening. The analytical approach is based on the work of Shen and Atluri (2006) [18] with some modifications. The modifications are related to the ela... Read More about Experimental measurement and analytical determination of shot peening residual stresses considering friction and real unloading behavior.