Fatigue of welded joints
Fatigue of welded joints – interactive engineering module focused on fatigue of welded joints. Learning format: Simulator · Interactive visualisation. Explains the principle, technical relationships and practical use.
Topic overview
Fatigue is progressive crack initiation and growth under cyclic loading. A weld may have substantial static reserve and still fail at its toe or root when detail classification, load spectrum and production quality are not aligned.
Does the manufactured detail match the fatigue category used in design, including profile, root, terminations and any post-weld improvement?
Stress range and number of repetitions matter—not only a one-off maximum.
Fatigue is often governed by local toe, root or attachment-end geometry.
What the module covers
- Fatigue-loaded welds
- 1. Fatigue is a detail problem
- 2. Crack initiation locations
- 3. Assessment sequence
- 4. Improving fatigue resistance
- Fatigue-production checklist
- Practical rule
Related engineering terms
The module connects these terms with practical engineering explanations:
Continue with the practical module.
Open this topic directly in the interactive WeldScope portal.