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Using Measurement and Testing to support theoretical analyses of welded structures exposed to fatigue.


The complexity of product development is constantly increasing. Today, the designer must rely on several different specialists, such as calculation, testing, and measurement engineers. The development in these areas is progressing rapidly, and it is difficult to get an overview of areas other than one's own specialty.

The purpose of the course is to create understanding between the different professions and thereby achieve more cost-effective products.


Prerequisites: Suitable prerequisites for this course include knowledge of fatigue design according to a design code, such as IIW, Eurocodes, DNV-RP, or EN 13001, or alternatively, completion of the SK2 or SK4 course organized by Weld on Sweden.


Day 1: Analysis of welded products subjected to fatigue.
- Fatigue of welded structures, a quick overview.
- Evaluation methods: Nominal, Hot Spot, Effective Notch methods, and Fracture Mechanics.
- Advantages and disadvantages of the evaluation methods compared to Rig Testing, Measurement, and Full-Scale Testing on a test track. When is each method most suitable?



Day 2: Measurement and evaluation of measurement results.
- Review of various measuring equipment, especially strain gauges.
- Evaluation methods when analyzing measurement results.
- Planning and execution of a measurement.
- How measurement results can be used in theoretical calculations.
- Theoretical determination of loads through Multi-Body Simulations, MBS, and Power Spectral Density, PSD.


Day 3: Fatigue testing.
- Fatigue testing of welded joints.
- Fatigue testing of entire structures.


Day 4: Summary example.
- Review of a comprehensive example that highlights all the points mentioned above.

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