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Finite Element Modeling Of Welding Processes

Prof. Swarup Bag · IIT Guwahati

Start with lecture 1 At NPTEL

Lectures

Week 1 : Introduction to welding processes

  1. Lec 1 : Properties, Modelling approaches, Process modelling and Optimization Video
  2. Lec 2 : Fusion welding -1 Video
  3. Lec 3 : Fusion welding -2 Video
  4. Lec 4 : Soldering, Brazing, Solid-state welding processes Video

Week 2: Introduction to welding processes and Fundamentals of finite element (FE) method-I

  1. Lec 5 : Advanced welding processes Video
  2. Lec 6 : Advances in laser microwelding Video
  3. Lec 7 : Additive manufacturing processes Video
  4. Lec 8 : Elastic stress analysis-I Video
  5. Lec 9 : Elastic stress analysis-II and Potential energy method Video

Week 3: Fundamentals of finite element method-II

  1. Lec 10 : Three- Dimensional element Video
  2. Lec 11 : Weighted residual method Video
  3. Lec 12 : Material nonlineaity-I Video
  4. Lec 13 : Material nonlineaity-II Video

Week 4: Fundamentals of finite element (FE) method-III and Heat source model in conduction mode welding processes-I

  1. Lec 14 : Fluid flow and Natural coordinate system-I Video
  2. Lec 15 : Natural coordinate system in 3D and XFEM Video
  3. Lec 16 : Introduction to heat source model Video

Week 5: Heat source model in conduction mode welding processes

  1. Lec 17 : Heat source models in welding-I Video
  2. Lec 18 : Heat source models in welding-II Video
  3. Lec 19 : Heat source model for Keyhole mode and solid state welding Video

Week 6: Application of FEM to model welding processes

  1. Lec 20 : Implementation of FEM in fusion welding processes Video
  2. Lec 21 : Implementation of FEM for fluid flow in fusion welding processes Video

Week 7: Application of FEM to model welding processes

  1. Lec 22 : FEM modeling of EBW and RSW Video
  2. Lec 23 : FEM modeling of FSW and hybrid FSW Video
  3. Lec 24 : Demonstration of thermal model development using commercial software Video

Week 8: FE-based fluid flow model in fusion welding process

  1. Lec 25 : Fluid flow modeling in welding processes Video
  2. Lec 26 : Heat transfer and fluid flow analysis in quasi-steady state Video
  3. Lec 27 : Prediction of free surface profile Video

Week 9: FE-based elasticplastic stress model of welding processes

  1. Lec 28 : Principle stress, Hydrostatic and Deviatoric Components of Stress Video
  2. Lec 29 : Yield Function, Von Mises Yield Surface and Hardening rule Video
  3. Lec 30 : Material models, Residual stress and distortion Video
  4. Lec 31 : Phase transformation effect on Residual stress and distortion Video
  5. Lec 32 : Demonstration of thermo-mechanical model development using commercial software Video

Week 10: FE model of metal transfer in welding

  1. Lec 33 : Fundamentals of metal transfer in arc welding Video
  2. Lec 34 : FE-based modelling approaches Video

Week 11: FE model of non-Fourier heat conduction

  1. Lec 35 : Theoretical development of heat transfer model Video
  2. Lec 36 : Heating of nano-film Video
  3. Lec 37 : Theoretical development of stress analysis model Video

Week 12: FE model of wire-additive manufacturing processes

  1. Lec 38 : Fundamentals of wire arc additive manufacturing processes-I Video
  2. Lec 39 : Fundamentals of wire arc additive manufacturing processes-II Video
  3. Lec 40 : Modelling approaches of additive manufacturing Video

Live Session

  1. Live Session 17-02-2021 Video
  2. Live Session 18-03-2021 Video
  3. Live Session 13-04-2021 Video

Syllabus and materials

At NPTEL, as the course publishes them.

Credits and licence

Institution
IIT Guwahati
Department
Mechanical Engineering
Teacher
Prof. Swarup Bag
Level
Undergraduate
Language
English
Subjects
Engineering
Source
NPTEL
Licence
CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
Attribution
NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
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