Welding Design and Metal Fatigue for Structural Engineering

After participating in this course, you will be able to:

• Analyze and evaluate welded joints using advanced principles of material strength.
• Design durable welded joints, factoring in structural load conditions and metal fatigue.
• Implement techniques to reduce distortion and prevent failures in welded structures.
• Apply fatigue analysis to assess and mitigate potential failure in welded joints.
• Improve the performance of welded structures through innovative design modifications.

Description
Welding is an indispensable method for structural engineers and architects, offering a flexible and cost-effective solution for structural design and development. With years of research and advancements, welding has become a trusted approach to making durable structural connections. However, understanding the complexities of weld joint design, metal fatigue, and structural performance is essential to ensure long-lasting integrity.

In this course, you will explore various welding techniques used in structural engineering, including ways to minimize weld distortion and prevent failures. By comprehensively examining weld joint design under static and fatigue loading, you will gain the skills needed to enhance structural safety and reliability. Topics such as residual stresses, distortion, and fatigue will also be covered, providing participants with practical solutions to common welding challenges.

Participants will leave this course equipped with the knowledge to improve welded structure designs and ensure the longevity of their projects. Whether designing for static loads or dealing with the impacts of fatigue, you'll gain insights into improving welded joints and ensuring their resilience through better design and preventive measures. By the end of the course, you will have a solid foundation in both the theoretical and practical aspects of welding design.

Who Should Attend
This course is designed for fabricators, engineers, and project managers involved in designing and assessing welded structures. Structural engineers who analyze fatigue in structures subjected to repeated loading will benefit from this in-depth course. Professionals involved in construction, welding design, or consulting, particularly those responsible for ensuring the integrity and safety of structures, will find this course invaluable.

Additionally, this course is suitable for individuals looking to expand their understanding of welded joint performance, including consulting engineers, construction engineers, and project leads overseeing welding projects. Anyone tasked with improving the safety and performance of structural welding designs should consider attending.

Welcome, Introduction, Learning Outcomes, and Assessment Method

Design of Welded Structures: Overview of the Course

• Introduction to welded construction
• Fundamentals of the strength of materials
• Welded joint design
• Metal fatigue
• Welded design improvements
• Workshop

Introduction to Welded Construction

• Welding importance to the structural field
• Why welded construction
• How good is a weld
• Weld quality and inspection
• Design for welding
• Weldability and welding procedures
• Welding symbols
• Weld layout

Fundamentals of Strength of Materials

• Tensile, compressive, and shear properties of materials
• Engineering stress-strain properties
• True stress-strain properties
• Hardness testing, correlations and conventions

Performance of Welded Structures

Behaviour Under Static Loading (Welded Joint Design)

• Types of welds
• Types of welded joints
• The static design of welded joints

Workshop

Participants work on hands-on exercises under the instructor’s guidance on both days. Workshop exercises include the following topics:

• Design of welded joints under static loading
• Fatigue damage calculations
• Design of welded joints against fatigue failure

Performance of Welded Structures

Behaviour Under Repeated Loading (Metal Fatigue)

• Loading spectrum
• Cycle counting technique
• Fatigue properties
• Stress-life and strain-life approaches in fatigue analysis
• Mean stress effect
• Notch geometry effect
• Potential modes of fatigue failures in welded structures
• Fatigue of welded joints

Welded Design Improvements

• General guidelines
• Recommendations

Workshop

Participants work on hands-on exercises under the instructor’s guidance on both days. Workshop exercises include the following topics:

• Design of welded joints under static loading
• Fatigue damage calculations
• Design of welded joints against fatigue failure

Questions and Answers, and Feedback on Achievement of Learning Outcomes