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A validated analytical-numerical modelling strategy to predict residual stresses in single-track laser deposited IN718 (2018)
Journal Article
Walker, T., Bennett, C., Lee, T., & Clare, A. (2019). A validated analytical-numerical modelling strategy to predict residual stresses in single-track laser deposited IN718. International Journal of Mechanical Sciences, 151, 609-621. doi:10.1016/j.ijmecsci.2018.12.004

Direct Energy Deposition (DED) is being increasingly used to repair high value components that have been damaged in-service. The uptake of DED and laser cladding operations for repair is inhibited by accurate modelling techniques. Often the repair pr... Read More

On the interaction between welding residual stresses: a numerical and experimental investigation (2018)
Journal Article
Salerno, G., Bennett, C., Sun, W., Becker, A., Palumbo, N., Kelleher, J., & Zhang, S. Y. (2018). On the interaction between welding residual stresses: a numerical and experimental investigation. International Journal of Mechanical Sciences, 144, (654-667). doi:10.1016/j.ijmecsci.2018.04.055. ISSN 0020-7403

The interaction of weld induced residual stresses in an important issue for multi-pass and repair welding operations; effective prediction of the magnitude and location of peak residual stresses can lead to improved lifing predictions and greater und... Read More

A numerical methodology for predicting tool wear in Friction Stir Welding (2016)
Journal Article
Hasan, A., Bennett, C., Shipway, P., Cater, S., & Martin, J. (2017). A numerical methodology for predicting tool wear in Friction Stir Welding. Journal of Materials Processing Technology, 241, doi:10.1016/j.jmatprotec.2016.11.009. ISSN 0924-0136

A novel methodology for predicting tool wear in FSW based on a CFD model, coupled with a modified Archard equation, is presented considering the effect of the deformation of the highly viscous flow around the tool on tool wear. A validation process... Read More

Finite element modelling strategies of weld repair in pre-stressed thin components (2016)
Journal Article
Salerno, G., Bennett, C., Sun, W., & Becker, A. A. (in press). Finite element modelling strategies of weld repair in pre-stressed thin components. Journal of Strain Analysis for Engineering Design, 51(8), doi:10.1177/0309324716666436. ISSN 0309-3247

A total of two computational procedures have been developed in the commercial finite element software codes Sysweld and ABAQUS to analyse and predict the residual stress state after the repair of small weld defects in thin structural components. The... Read More

A numerical comparison of the flow behaviour in Friction Stir Welding (FSW) using unworn and worn tool geometries (2015)
Journal Article
Hasan, A., Bennett, C., & Shipway, P. (in press). A numerical comparison of the flow behaviour in Friction Stir Welding (FSW) using unworn and worn tool geometries. Materials and Design, 87, doi:10.1016/j.matdes.2015.08.016. ISSN 0261-3069

The tool is a key component in the Friction Stir Welding (FSW) process, but the tool degrades and changes shape during use; however, only a limited number of experimental studies have been undertaken in order to understand the effect that worn tool g... Read More

Finite element modelling of the inertia friction welding of a CrMoV alloy steel including the effects of solid-state phase transformations (2015)
Journal Article
Bennett, C. (in press). Finite element modelling of the inertia friction welding of a CrMoV alloy steel including the effects of solid-state phase transformations. Journal of Manufacturing Processes, 18, doi:10.1016/j.jmapro.2015.01.003. ISSN 1526-6125

Finite element (FE) process modelling of the inertia friction welding (IFW) between two tubular CrMoV components has been carried out using the DEFORM-2D (v10.2) software. This model has been validated against experimental test welds of the material;... Read More

Numerical simulation of residual stresses induced by weld repair in a stainless steel pipe considering the influence of an initial fabrication weld
Conference Proceeding
Salerno, G., Bennett, C., Sun, W., & Becker, A. A. (in press). Numerical simulation of residual stresses induced by weld repair in a stainless steel pipe considering the influence of an initial fabrication weld. Manuscript submitted for publication

This work presents the application of a finite element (FE) model developed to simulate the repair process in the case of components with a pre-existing stress state. The approach is tested in the case of a repair of a laser beam weld in a stainless... Read More