Numerical modelling techniques applicable for the prediction of residual stresses and distortion due to mild steel DH36 frictions stir welding

Duncan Camilleri, Daniel Micallef, Larbi Arbaoui, Athanasios Toumpis, Alexander Galloway

Research output: Contribution to conferencePaper

Abstract

Friction stir welding involves a multi-physics phenomena, including visco-plasticity, material flow, metallurgical transformation, heat generation, thermal straining and structural interaction. Numerical modelling provides an efficient and cost effective tool capable to analysis and predict the different phenomena. This study integrates different numerical modelling strategies to ultimately develop a robust yet computationally efficient modelling technique capable of predicting residual stresses and distortion due to FSW. A computational efficient local-global numerical model capable of predicting the material visco-plastic flow, thermal transients, stir/heat affected zone, residual stresses and distortion developed due to friction stir welding of DH36 plates is described. Different thermo-elasto-plastic modelling strategies ranging from analytical to transient numerical models are explored and the most robust and computational efficient strategy is identified through cross-reference with the realistic experimental test results.

Conference

Conference4th International Conference on Friction Stir Welding, FSWP2015
CountrySpain
CityDonostia-San Sebastian
Period1/10/152/10/15

Fingerprint

Friction stir welding
Carbon steel
Numerical models
Residual stresses
Heat generation
Heat affected zone
Plastic flow
Plasticity
Physics
Plastics
Costs
Hot Temperature

Keywords

  • numerical models
  • residual stresses
  • out-of-plane distortion
  • friction stir welding (FSW)

Cite this

Camilleri, D., Micallef, D., Arbaoui, L., Toumpis, A., & Galloway, A. (2015). Numerical modelling techniques applicable for the prediction of residual stresses and distortion due to mild steel DH36 frictions stir welding. Paper presented at 4th International Conference on Friction Stir Welding, FSWP2015, Donostia-San Sebastian, Spain.
Camilleri, Duncan ; Micallef, Daniel ; Arbaoui, Larbi ; Toumpis, Athanasios ; Galloway, Alexander. / Numerical modelling techniques applicable for the prediction of residual stresses and distortion due to mild steel DH36 frictions stir welding. Paper presented at 4th International Conference on Friction Stir Welding, FSWP2015, Donostia-San Sebastian, Spain.4 p.
@conference{065af5318c0b4d4cb780ff10090ee270,
title = "Numerical modelling techniques applicable for the prediction of residual stresses and distortion due to mild steel DH36 frictions stir welding",
abstract = "Friction stir welding involves a multi-physics phenomena, including visco-plasticity, material flow, metallurgical transformation, heat generation, thermal straining and structural interaction. Numerical modelling provides an efficient and cost effective tool capable to analysis and predict the different phenomena. This study integrates different numerical modelling strategies to ultimately develop a robust yet computationally efficient modelling technique capable of predicting residual stresses and distortion due to FSW. A computational efficient local-global numerical model capable of predicting the material visco-plastic flow, thermal transients, stir/heat affected zone, residual stresses and distortion developed due to friction stir welding of DH36 plates is described. Different thermo-elasto-plastic modelling strategies ranging from analytical to transient numerical models are explored and the most robust and computational efficient strategy is identified through cross-reference with the realistic experimental test results.",
keywords = "numerical models, residual stresses, out-of-plane distortion, friction stir welding (FSW)",
author = "Duncan Camilleri and Daniel Micallef and Larbi Arbaoui and Athanasios Toumpis and Alexander Galloway",
year = "2015",
month = "10",
day = "1",
language = "English",
note = "4th International Conference on Friction Stir Welding, FSWP2015 ; Conference date: 01-10-2015 Through 02-10-2015",

}

Camilleri, D, Micallef, D, Arbaoui, L, Toumpis, A & Galloway, A 2015, 'Numerical modelling techniques applicable for the prediction of residual stresses and distortion due to mild steel DH36 frictions stir welding' Paper presented at 4th International Conference on Friction Stir Welding, FSWP2015, Donostia-San Sebastian, Spain, 1/10/15 - 2/10/15, .

Numerical modelling techniques applicable for the prediction of residual stresses and distortion due to mild steel DH36 frictions stir welding. / Camilleri, Duncan; Micallef, Daniel; Arbaoui, Larbi; Toumpis, Athanasios; Galloway, Alexander.

2015. Paper presented at 4th International Conference on Friction Stir Welding, FSWP2015, Donostia-San Sebastian, Spain.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Numerical modelling techniques applicable for the prediction of residual stresses and distortion due to mild steel DH36 frictions stir welding

AU - Camilleri, Duncan

AU - Micallef, Daniel

AU - Arbaoui, Larbi

AU - Toumpis, Athanasios

AU - Galloway, Alexander

PY - 2015/10/1

Y1 - 2015/10/1

N2 - Friction stir welding involves a multi-physics phenomena, including visco-plasticity, material flow, metallurgical transformation, heat generation, thermal straining and structural interaction. Numerical modelling provides an efficient and cost effective tool capable to analysis and predict the different phenomena. This study integrates different numerical modelling strategies to ultimately develop a robust yet computationally efficient modelling technique capable of predicting residual stresses and distortion due to FSW. A computational efficient local-global numerical model capable of predicting the material visco-plastic flow, thermal transients, stir/heat affected zone, residual stresses and distortion developed due to friction stir welding of DH36 plates is described. Different thermo-elasto-plastic modelling strategies ranging from analytical to transient numerical models are explored and the most robust and computational efficient strategy is identified through cross-reference with the realistic experimental test results.

AB - Friction stir welding involves a multi-physics phenomena, including visco-plasticity, material flow, metallurgical transformation, heat generation, thermal straining and structural interaction. Numerical modelling provides an efficient and cost effective tool capable to analysis and predict the different phenomena. This study integrates different numerical modelling strategies to ultimately develop a robust yet computationally efficient modelling technique capable of predicting residual stresses and distortion due to FSW. A computational efficient local-global numerical model capable of predicting the material visco-plastic flow, thermal transients, stir/heat affected zone, residual stresses and distortion developed due to friction stir welding of DH36 plates is described. Different thermo-elasto-plastic modelling strategies ranging from analytical to transient numerical models are explored and the most robust and computational efficient strategy is identified through cross-reference with the realistic experimental test results.

KW - numerical models

KW - residual stresses

KW - out-of-plane distortion

KW - friction stir welding (FSW)

UR - http://www.lortek.es/?content=356;fswp-the-4th-international-conference-on-friction

M3 - Paper

ER -

Camilleri D, Micallef D, Arbaoui L, Toumpis A, Galloway A. Numerical modelling techniques applicable for the prediction of residual stresses and distortion due to mild steel DH36 frictions stir welding. 2015. Paper presented at 4th International Conference on Friction Stir Welding, FSWP2015, Donostia-San Sebastian, Spain.