I would like to detect damage on a cantilever beam by reducing the modulus of elasticity. How can I conduct the experimental version of this study? How can I introduce damage experimentally? For instance, if the beam is divided into eight segments and the modulus of elasticity is reduced in one segment, how can this reduction represent damage in that region? Should I create a hole on the beam? Thank you in advance.
Eren Eren The best approach I would recommend is to develop a functionally graded material (FGM) model, for concrete. First calculate the batch mixes for the layers. The key is to carefully cast these layers to ensure consistency. In terms of steel, I think you should introduce notches with gradual changes. Instead of creating a single large hole or notch, you can introduce multiple smaller holes or notches along the segment where you want to simulate damage. This method allows for a more controlled and gradual reduction in stiffness, effectively simulating progressive damage. Ihtisham Khalid Also have technically explained it in his research article.
Dear friend, you can represent damage in different ways,
1. Creating a Hole
Effect: A hole reduces the cross-sectional area of the beam, decreasing its stiffness and increasing local stress concentration. This simulates damage by mimicking material degradation.
2. Notches or grooves
Notches reduce the beams cross sectional areas and create a localised weak points
3. Material substitution
Replacing the section of the beam with a material low modulus of elasticity
4. Thermal treatment
- Badges
- Science topic