Why enroll

Participants join this course to develop a deep, analytical understanding of welding processes through scientific and computational modeling techniques. The course enables learners to move beyond empirical approaches and gain the ability to predict temperature distribution, residual stresses, distortion, and microstructural evolution during welding.

This program is particularly valuable for postgraduate students, researchers, and practicing engineers involved in welding design, simulation, and process optimization. By learning analytical and numerical modeling methods, participants enhance their capability to solve complex welding problems, reduce trial-and-error in process development, and support data-driven decision-making in industries such as aerospace, automotive, shipbuilding, and energy.

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Course content

The course is readily available, allowing learners to start and complete it at their own pace.

Analysis and modeling of welding

20 Lectures

726 min

Introduction to fusion welding processes: part 1/2
Preview
32 min
Introduction to fusion welding processes: part 2/2
Preview
31 min
Heat sources part 1/2
30 min
Heat sources part 2/2
40 min
Heat removal
29 min
Thermal Modeling Part 1/2
43 min
Thermal Modelling - Part 2/2
46 min
Zones in a weldment
42 min
Analytical Solutions to Weld Thermal Field
29 min
Conduction to Keyhole mode
27 min
Fluid flow modelling - part 1/2
41 min
Fluid flow modelling - part 2/2
37 min
Solute transfer modelling - part 1/2
24 min
Solute transfer modelling - part 2/2
37 min
Solute segregation profile - part 1/2
25 min
Solute segregation profile - part 2/2
21 min
Microstructure Formation in Fusion Welds
39 min
Numerical Solutions to Thermal Field and Fluid Flow in Welding - Part 1
44 min
Numerical Solutions to Thermal Field and Fluid Flow in Welding - Part 2
52 min
Dissimilar Welding
57 min

Course details

Analysis and Modeling of Welding focuses on the scientific and computational approaches used to understand, predict, and optimize welding processes. The course introduces the fundamentals of welding physics, including heat transfer, fluid flow in the molten pool, metallurgical transformations, and residual stress and distortion development. Emphasis is placed on developing analytical and numerical models that describe the complex thermal–mechanical–metallurgical interactions occurring during welding.

The course covers analytical heat source models, temperature field prediction, cooling rate estimation, and their influence on microstructure and mechanical properties. It also introduces numerical techniques such as finite element and finite difference methods for simulating welding processes, residual stresses, and deformation. By integrating theoretical concepts with practical modeling approaches and industrial case studies, the course equips participants with the skills required to analyze welding behavior, improve joint design, and support process optimization and quality assurance in advanced manufacturing applications.

Source : NPTEL [Youtube]

Course suitable for

Mechanics & Turbomachinery
Mechanical
Production

Key topics covered

introduction to fusion welding processes
heat sources and heat removal
thermal modelling
zones in a weldment
conduction to keyhole mode
solute transfer modelling
dissimilar welding

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