I am developing a numerical model that optimizes the placement of ribs or stiffeners on a base rectangular plate. For the base plate, we use shell elements, while the ribs or stiffeners are modeled with beam or wire elements. To connect these components, we employ a tie constraint. The load applied to the plate is hydrostatic. To validate our model, we initially conducted an experiment on a plate without ribs and then compared the results with the numerical predictions. For the non-ribbed plate, the numerical analysis yielded a deflection of 4.56 mm, while the experimental result was 5.5 mm as shown in below Figure. When we applied the same load, boundary conditions, and material properties to the ribbed plate, we observed a significant discrepancy between the experimental and numerical results. Numerically, the deflection was 0.9 mm, but experimentally, it measured 8.7 mm as shown in below Figure. For better understanding of the connection between ribs and plate, I have uploaded a picture of 3D printing plate with ribs.
My question is this result difference is due to tie-constraint or any thing else?
The use of tie constraints to connect different components can impact the overall behavior of the structure. It's possible that the tie constraint used in the numerical model may not accurately capture the physical behavior of the ribbed plate under the applied load, leading to the discrepancy in results. For more detailed discussion, connect with me on https://wa.me/+923440907874
- Badges
- Science topic
- Similar topics
- Chemistry
- Pharmacology
- Pharmaceuticals
- Drugs