- #1
sfensphan
- 10
- 1
Hi All,
I'm trying to think through a problem and was hoping to ping the community for guidance. Suppose you have a beam that's symmetric about 2 axes (like a u channel or a triangular extrusion). Is it better to load the beam in compression on the side with material furthest away or should you load that side in tension? In the case of a U channel, I think that the top of the U should be loaded in tension as it would allow the member to carry more moment before buckling occurs. In the case of a equilateral triangle extrusion, I can't think of a good reason either way. Loading the tip of the triangle in compression would make it more likely to buckle, but it's farther away from the neutral axis. I'm assuming that the Young's modulus is the same in compression and tension. I think that matters but not 100% sure
Any thoughts would be very helpful!
I'm trying to think through a problem and was hoping to ping the community for guidance. Suppose you have a beam that's symmetric about 2 axes (like a u channel or a triangular extrusion). Is it better to load the beam in compression on the side with material furthest away or should you load that side in tension? In the case of a U channel, I think that the top of the U should be loaded in tension as it would allow the member to carry more moment before buckling occurs. In the case of a equilateral triangle extrusion, I can't think of a good reason either way. Loading the tip of the triangle in compression would make it more likely to buckle, but it's farther away from the neutral axis. I'm assuming that the Young's modulus is the same in compression and tension. I think that matters but not 100% sure
Any thoughts would be very helpful!