Master Welding Simulation: Finite Element Modeling Course by IIT Guwahati
Course Details
| Exam Registration | 53 |
|---|---|
| Course Status | Ongoing |
| Course Type | Elective |
| Language | English |
| Duration | 12 weeks |
| Categories | Mechanical Engineering, Advanced Mechanics, Manufacturing Processes and Technology, Computational Mechanics, Materials Joining |
| Credit Points | 3 |
| Level | Undergraduate/Postgraduate |
| Start Date | 19 Jan 2026 |
| End Date | 10 Apr 2026 |
| Enrollment Ends | 02 Feb 2026 |
| Exam Registration Ends | 20 Feb 2026 |
| Exam Date | 26 Apr 2026 IST |
| NCrF Level | 4.5 — 8.0 |
Master the Science Behind Welding with Finite Element Modeling
Welding is far more than just joining two pieces of metal. It's a complex interplay of intense heat, rapid fluid flow, metallurgical transformations, and significant mechanical stresses. Predicting the outcome—from the strength of the joint to potential distortions—is critical for engineering safe and reliable structures. This is where Finite Element Modeling (FEM) becomes an indispensable tool, allowing engineers to simulate and analyze welding processes before a single arc is struck.
For students and professionals eager to dive deep into this advanced field, a comprehensive course led by Prof. Swarup Bag of IIT Guwahati offers a unique opportunity. This 12-week program is designed to build a strong foundation in developing computational models for both fusion and solid-state welding processes.
About the Instructor: Prof. Swarup Bag
The course is guided by an expert with distinguished academic and research credentials. Prof. Swarup Bag specializes in the computational modeling of materials and manufacturing processes using the Finite Element Method, complemented by experimental validation.
- Education & Research: He earned his Ph.D. from IIT Bombay, focusing on bi-directional heat transfer and fluid flow models for GTA and laser welding. His post-doctoral research was conducted at the prestigious Center for Material Forming (CEMEF), MINES ParisTech, France.
- Recognition: He is a recipient of the 'Royal Arc Award 2009' from the Indian Institute of Welding for the best Ph.D. thesis in welding.
- Publications & Expertise: With an impressive portfolio of 56 journal papers, 45 conference papers, and 18 book chapters, Prof. Bag is a leading voice in the field. He is also the author of the book 'Computational models for GTA and laser welding processes'.
- Teaching: At IIT Guwahati, he teaches core subjects like Physics of Manufacturing Processes, Advanced Welding Processes, and Mechanical Behavior of Materials.
Course Overview: What You Will Learn
This course is meticulously structured to transform a fundamental understanding of welding into the ability to create sophisticated FE models. The primary focus is on understanding the core mechanisms—heat transfer, fluid flow, and stress generation—and learning to express them mathematically for simulation.
Key Learning Outcomes:
- Develop a fundamental understanding of heat source modeling for various welding techniques.
- Gain the ability to formulate and develop FE-based models for thermal analysis, fluid flow, and elastic-plastic stress analysis in welding.
- Learn to predict critical outcomes like residual stress, distortion, and weld pool geometry.
- Understand the integration of metallurgical phase transformations into mechanical models.
- Explore advanced topics like modeling metal transfer in arc welding and non-Fourier heat conduction in ultra-short pulse laser welding.
Intended Audience: Bachelor, Master, and PhD students in Mechanical, Material Science, Metallurgical, Production, or Manufacturing Engineering. Faculty members are also welcome to attend as part of a Faculty Development Program (FDP).
Detailed 12-Week Course Layout
| Weeks | Topics Covered |
|---|---|
| Week 1-2 | Introduction to Welding Processes: Classification, fusion vs. solid-state welding, advanced processes, and wire additive manufacturing. |
| Week 3-4 | Fundamentals of the Finite Element Method: Elastic stress analysis, heat conduction, fluid flow formulation, and steps to build an FE model. |
| Week 5 | Heat Source Modeling: Surface and volumetric heat source models for conduction mode, solid-state, and keyhole mode welding (laser/EB). |
| Week 6-7 | Application of FEM to Welding: Governing equations for fusion (laser, arc) and solid-state (Friction, FSW) welding. Demo of thermal model development. |
| Week 8 | FE-Based Fluid Flow Model: Modeling Marangoni convection, governing equations, and predicting weld pool profile and free surface. |
| Week 9 | FE-Based Elastic-Plastic Stress Model: Yield criteria, hardening rules, predicting residual stress & distortion, incorporating phase transformation. Demo of thermo-mechanical model. |
| Week 10 | FE Model of Metal Transfer: Fundamentals and modeling approaches for metal transfer in arc welding processes. |
| Week 11 | FE Model of Non-Fourier Heat Conduction: Applications in ultra-short pulse laser welding and nano-scale heating. |
| Week 12 | FE Model of Wire-Additive Manufacturing: Fundamentals and modeling approaches for additive manufacturing processes. |
Essential Reference Books
The course curriculum is supported by a robust list of textbooks that serve as foundational and advanced references for the topics covered.
- Kalpakjian & Schmid: Manufacturing Engineering and Technology
- Zienkiewicz: The Finite Element Method
- J.N. Reddy: An Introduction to the Finite Element Method
- Goldak & Mehdi: Computational Welding Mechanics
- Bag & De: Computational models for GTA and laser welding processes (By the instructor)
- Besharati-Givi & Asadi: Advances in Friction-Stir Welding and Processing
Why This Course is Essential for Modern Engineers
In today's competitive manufacturing landscape, virtual prototyping and simulation are not just advantageous—they are essential. This course bridges the gap between theoretical welding science and practical computational analysis. It empowers you to:
- Reduce Cost & Time: Minimize physical trials and errors by simulating outcomes digitally.
- Enhance Design Reliability: Predict and mitigate potential failures due to residual stress or distortion.
- Drive Innovation: Use modeling insights to optimize existing processes and develop new welding techniques.
Whether you aim to pursue research in advanced joining technologies or seek to implement simulation-driven design in industry, this course on Finite Element Modeling of Welding Processes provides the critical knowledge and perspective to advance your expertise. Under the guidance of Prof. Swarup Bag, you will gain not just theoretical knowledge, but a practical framework for solving real-world welding challenges through computational mechanics.
Enroll Now →