All Outputs (21)

Investigating the transition from normal driving to safety critical scenarios (2019)
Thesis

Investigation of the correlation between factors associated with crash development has enabled the implementation of methods aiming to avert and control crash causation at various points within the crash sequence (Evans, 2006). Partitioning the crash... Read More about Investigating the transition from normal driving to safety critical scenarios.

Modelling soil compaction effects on maize growth and yield in a sandy loam soil (2019)
Journal Article

A mathematical model was developed for the prediction of soil compaction effects on the growth and yield of maize crop in a sandy loam soil in tropical climates. Field investigations were carried out at the teaching and research farm of Rivers State... Read More about Modelling soil compaction effects on maize growth and yield in a sandy loam soil.

Thermo-elastic creep analysis and life assessment of thick truncated conical shells with variable thickness (2019)
Journal Article

A semi-analytical method is presented to investigate time-dependent thermo-elastic creep behavior and life assessment of thick truncated conical shells with variable thickness subjected to internal pressure and thermal load. Based on the first-order... Read More about Thermo-elastic creep analysis and life assessment of thick truncated conical shells with variable thickness.

Aerodynamic analysis of a wind turbine with elevated inflow turbulence and wake using harmonic method (2019)
Presentation / Conference Contribution

This paper presents aerodynamic simulation and analysis of a horizontal axis wind turbine using Computational Fluid Dynamics (CFD) method. The MEXICO (Model Rotor Experiments In Controlled Conditions) Experiment wind turbine is selected for simulatio... Read More about Aerodynamic analysis of a wind turbine with elevated inflow turbulence and wake using harmonic method.

Aeromechanical analysis of wind turbines using non-linear harmonic method (2019)
Presentation / Conference Contribution

In this paper, aeromechanical analysis of wind turbines is presented. The distinctive feature of this paper is the use of frequency based non-linear harmonic method which is an efficient computational method to study unsteady periodic flow and aerole... Read More about Aeromechanical analysis of wind turbines using non-linear harmonic method.

Boost converter topologies, hybrid boost and new topologies of voltage multiplier in photovoltaic systems (2019)
Journal Article

Renewable energy generation has experienced lot growth in the last not many years, with close to several billion dollars financing in 2017. Selection of an appropriate converter is one of the challenges since it has an impact on the behavior of the P... Read More about Boost converter topologies, hybrid boost and new topologies of voltage multiplier in photovoltaic systems.

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.

Creep damage and life assessment of thick cylindrical pressure vessels with variable thickness made of 304L austenitic stainless steel (2019)
Journal Article

Using first-order shear deformation theory (FSDT), a semi-analytical solution is employed to analyze creep damage and remaining life assessment of 304L austenitic stainless steel thick (304L ASS) cylindrical pressure vessels with variable thickness s... Read More about Creep damage and life assessment of thick cylindrical pressure vessels with variable thickness made of 304L austenitic stainless steel.

The European road safety decision support system. A clearinghouse of road safety risks and measures, Deliverable 8.3 of the H2020 project SafetyCube (2019)
Report

Safety CaUsation, Benefits and Efficiency (SafetyCube) is a European Commission supported Horizon 2020 project with the objective of developing an innovative road safety Decision Support System (DSS) that will enable policy-makers and stakeholders t... Read More about The European road safety decision support system. A clearinghouse of road safety risks and measures, Deliverable 8.3 of the H2020 project SafetyCube.

A benchtop flight control demonstrator (2019)
Journal Article

A feedback control demonstrator is described. The demonstrator is intended for the demonstration of control principles applied to flight control of fixed-wing aircraft and hence is suitable for aeronautical programmes. The demonstrator consists of a... Read More about A benchtop flight control demonstrator.

Investigating pitching moment stall through dynamic wind tunnel test (2019)
Journal Article

Experimental characterisation of aircraft dynamic stall can be a challenging and complex system identification activity. In this article, the authors present a method that combines dynamic wind tunnel testing with parameter estimation techniques to s... Read More about Investigating pitching moment stall through dynamic wind tunnel test.

Evolution of joint probability methods in coastal engineering practice in the UK (2019)
Journal Article

This paper outlines the evolution of joint probability methods in the design and assessment of sea defence structures in the UK, together with the key drivers for these different methods. It highlights why and how the joint exceedance curve technique... Read More about Evolution of joint probability methods in coastal engineering practice in the UK.

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.

Investigation of 3-D strains on highly-twisted swept tip composite rotor blades (2019)
Presentation / Conference Contribution

This paper presents an investigation of the effects of swept tip on highly twisted composite rotor blades. The focus is on detailed three dimensional (3-D) strain measurement. Both vacuum chamber tests and 3-D finite element method (FEM) analysis wer... Read More about Investigation of 3-D strains on highly-twisted swept tip composite rotor blades.

Analysis of low-speed height-velocity diagram of a variable-speed-rotor helicopter in one-engine-failure (2019)
Journal Article

This work analyzes the effects of variable operating rotor speed on the helicopter low-speed Height–Velocity (H-V) diagram in one engine inoperative (OEI) situation. Using the UH-60A helicopter as baseline helicopter, a flight dynamics model and the... Read More about Analysis of low-speed height-velocity diagram of a variable-speed-rotor helicopter in one-engine-failure.

What came before the crash? An investigation through SHRP2 NDS data (2019)
Journal Article

Investigating crash progression through naturalistic driving studies (NDS) could give valuable insights in crash causation analysis and thus, benefit crash prevention. This study utilises NDS data from the Strategic Highway Research Program 2 (SHRP2... Read More about What came before the crash? An investigation through SHRP2 NDS data.

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.

High aspect ratio wing design using the minimum exergy destruction principle (2019)
Presentation / Conference Contribution

High Aspect Ratio Wings (HARW) may provide the efficiency improvements required for next generation aircraft to meet the environmental and economic challenges faced by the aviation industry. In this paper, the authors describe the development of a sh... Read More about High aspect ratio wing design using the minimum exergy destruction principle.