TY - GEN
T1 - Tailoring friction stir welds of aluminum alloys using a differential evolution and a transport phenomena based model
AU - Nandan, R.
AU - DebRoy, T.
AU - Prabu, B.
AU - De, A.
PY - 2009
Y1 - 2009
N2 - The current heat transfer and fluid flow models of friction stir welding can predict temperatures, material flow, and residual stresses from welding parameters such as the welding velocity, tool rotational speed and axial pressure. Since these models are unidirectional, they cannot currently predict welding variables needed to attain a thermal cycle or other weld attributes. Here we show that a differential evolution based optimization technique can be used to achieve inverse modeling capability of friction stir welding models. The new capability enables systematic tailoring of weld attributes based on scientific principles without any time consuming trial and error approach. The inverse modeling capability is tested by comparing model predictions with experimental results.
AB - The current heat transfer and fluid flow models of friction stir welding can predict temperatures, material flow, and residual stresses from welding parameters such as the welding velocity, tool rotational speed and axial pressure. Since these models are unidirectional, they cannot currently predict welding variables needed to attain a thermal cycle or other weld attributes. Here we show that a differential evolution based optimization technique can be used to achieve inverse modeling capability of friction stir welding models. The new capability enables systematic tailoring of weld attributes based on scientific principles without any time consuming trial and error approach. The inverse modeling capability is tested by comparing model predictions with experimental results.
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U2 - 10.1361/cp2008twr542
DO - 10.1361/cp2008twr542
M3 - Conference contribution
AN - SCOPUS:75649122210
SN - 9781615030026
T3 - ASM Proceedings of the International Conference: Trends in Welding Research
SP - 542
EP - 548
BT - Trends in Welding Research - Proceedings of the 8th International Conference
T2 - 8th International Conference on Trends in Welding Research
Y2 - 1 June 2008 through 6 June 2008
ER -