Stresses and stress concentrations
This module remains focused on technical interpretation: nominal stress, structural stress and local notch stress at the toe, root or an undercut. In a welded structure, the decisive question is whether the geometry forces the load path through an abrupt change of direction or a small effective area.
Open interactive module →Topic overview
This module remains focused on technical interpretation: nominal stress, structural stress and local notch stress at the toe, root or an undercut. In a welded structure, the decisive question is whether the geometry forces the load path through an abrupt change of direction or a small effective area.
Stress calculated from the selected load-bearing cross-section. It is used for conventional sizing but does not account for the local weld-toe geometry or imperfections.
Increased stress caused by the geometrical change in the structural detail. It does not yet include the micro-local notch at the weld toe or root.
Maximum local stress at the toe, root, undercut or sharp transition. It is particularly decisive for fatigue.
What the module covers
- Stresses and stress concentration in welded joints
- Technical logic for assessing a detail
- 1. Nominal stress
- 2. Effective structural stress
- 3. Notch stress
- Mohr’s circle — plane stress
- Fillet weld — indicative calculation
Continue with the practical module.
Open this topic directly in the interactive WeldScope portal.