This course on finite element modeling of welding processes aims to teach learners the skills needed to model and analyze various welding techniques using FEM. The course covers topics such as properties, modeling approaches, optimization, advanced welding processes, stress analysis, material nonlinearity, fluid flow, heat source modeling, and additive manufacturing processes. The teaching method includes lectures on theoretical concepts, demonstrations using commercial software, and modeling approaches. This course is intended for individuals interested in welding processes, mechanical engineering, materials science, or additive manufacturing.
Overview
Syllabus
Finite element modeling of welding processes [Intro Video].
Lec 1 : Properties, Modelling approaches, Process modelling and Optimization.
Lec 2 : Fusion welding -1.
Lec 3 : Fusion welding -2.
Lec 4 : Soldering, Brazing, Solid-state welding processes.
Lec 5 : Advanced welding processes.
Lec 6 : Advances in laser microwelding.
Lec 7 : Additive manufacturing processes.
Lec 8 : Elastic stress analysis-I.
Lec 9 : Elastic stress analysis-II and Potential energy method.
Lec 10 : Three- Dimensional element.
Lec 11 : Weighted residual method.
Lec 12 : Material nonlineaity-I.
Lec 13 : Material nonlineaity-II.
Lec 14 : Fluid flow and Natural coordinate system-I.
Lec 15 : Natural coordinate system in 3D and XFEM.
Lec 16 : Introduction to heat source model.
Lec 17 : Heat source models in welding-I.
Lec 18 : Heat source models in welding-II.
Lec 19 : Heat source model for Keyhole mode and solid state welding.
Lec 20 : Implementation of FEM in fusion welding processes.
Lec 21 : Implementation of FEM for fluid flow in fusion welding processes.
Lec 22 : FEM modeling of EBW and RSW.
Lec 23 : FEM modeling of FSW and hybrid FSW.
Lec 24 : Demonstration of thermal model development using commercial software.
Lec 25 : Fluid flow modeling in welding processes.
Lec 26 : Heat transfer and fluid flow analysis in quasi-steady state.
Lec 27 : Prediction of free surface profile.
Lec 28 : Principle stress, Hydrostatic and Deviatoric Components of Stress.
Lec 29 : Yield Function, Von Mises Yield Surface and Hardening rule.
Lec 30 : Material models, Residual stress and distortion.
Lec 31 : Phase transformation effect on Residual stress and distortion.
Lec 32 : Demonstration of thermo-mechanical model development using commercial software.
Lec 33 : Fundamentals of metal transfer in arc welding.
Lec 34 : FE-based modelling approaches.
Lec 35: Theoretical development of heat transfer model.
Lec 36 : Heating of nano-film.
Lec 37 : Theoretical development of stress analysis model.
Lec 38 : Fundamentals of wire arc additive manufacturing processes-I.
Lec 39 : Fundamentals of wire arc additive manufacturing processes-II.
Lec 40 : Modelling approaches of additive manufacturing.
Taught by
NPTEL IIT Guwahati
