Challenge 2- Comparing the performance of three types of beams under bending load.
AIM / OBJECTIVE: To compare the performance of 3 types of beams under load.
INTRODUCTION: Comparison of how a structure of different material will act under a constant load has become a necessity. As, it helps us in understanding whether that structure made of a particular material will satisfy the requirements or not.
THEORY: We are considering 3 beams of different structures (cross-sectional area) made of common material (Plain Carbon Steel) with load of 1500N acting uniformly. We are assuming that the beams are cantilever beams.
PROCEDURE:
*First, we model the all structural beams as per the design provided. Extruded by 400mm.
-Rectangular Section:
-I Section:
-C Section:
*Start a new simulation study for each case.
*Static Study is being considered for all the cases.
*Add material as "Plain Carbon Steel" for all the 3 cases.
*We are considering all default parameters of the material.
*For our structures to act as cantilever beam, we need to fix 1 face of the beams using fixed geometry, and apply load on the desired face as required.
-Rectangle Beam:
-I Section Beam:
-C Section Beam:
*Apply mesh to all structures. (default mesh details are considered)
*Now Run the study in all cases to get the desired output in terms of Stress, Displacement and Strain.
-Rectangular Beam:
-I Section Beam:
-C Section Beam:
RESULT:
from the results obtained,
| Beams | Material | Stress | Yield Strength | Displacement |
| Rectangular | Plain Carbon Steel |
Max: 7.628e+06 Min: 2.894e+02 |
2.206e+02 |
Min: 1.000e-30 Max: 3.100e-02 |
| I Section | Plain Carbon Steel |
Max: 2.256+07 Min: 2.973+02 |
2.206e+02 |
Min: 1.000e-30 Max: 8.567e-02 |
| C Section | Plain Carbon Steel |
Max: 3.803e+07 Min: 2.997e+04 |
2.206e+02 |
Min: 1.000e-30 Max: 3.330e-01 |
*We can observe that in all cases the stress acting on the beams are less than the yield strength. When compared to 3 structures, rectangular beam offers a better performance when compared to the other 2 structures.
* If there is constraint of having a lesser mass, then I section is preferred.