Interested to hear your response if you had time. I'm on the fence about agreeing with your analysis. I'm an mechanical engineering technologist so my background may not be enough to satisfy an answer here but none the less I'll outline my thoughts. 1) How can we say the second joint (gussets welded outside) is stronger? - We don't have any data to backup how much force either of the joints experienced so comparison is difficult, eyeballing it I don't think is correct either. -We also saw the second joint reached and exceeded the ultimate strength of the weld, leading to failure. Perhaps in shear or in tensile. Though looking at the loading I would think transverse shear of the weld and failure from that shear stress is what occurred in joint 2. - The tubing may have not experienced any plastic deformation but we do see an overall failure of the joint at the weld. What does this say about it's integrity compared to a pound for pound comparison of joint 1? 2) Comparing the two joints we see that joint 1 did not fail but experienced plastic deformation, the tubing buckling on the face. Again we have no data for force applied but assuming they are the same in this experiment it would suggest that the first joint is stronger since it did not fail, though exceeded elastic deformation which is highly unfavorable, even worse then for joint 2. -What does this say about the joint design? If the second joint were to have a larger safety factor perhaps it wouldn't have failed, but we would need to increase the first joint proportionally to have an equal comparison. -If we are looking from a design and repair perspective perhaps not destroying the main member is the purpose of using joint 2? So disposal of gussets and replacement is more feasible, but the main member would need to be replaced regardless from the excessive stresses induced from the over loading. Anyone can feel free to chime in, great video none the less!
It would be nice to know the resistance in PSI that the Press was exerting on each weldment. Also a test of a gussets vs a triangulated brace would be of interest. Thank you for the test.
Yeah, it doesn't matter if one type of gusset damages the base metal less if the weight that it supports is considerably less than the other. I'm not saying that is the case here, but without some sort of weight / pressure gauge, we don't KNOW what is really happening.
The thing is that sometimes you have to mount a plate to the surface of something so you do need those internal gussets but I get where you're going with this
Doc. This was fascinating!!!! What if we put a single gusset in the center and then the two on the outside ? Would it be possible that the single gusset on the interior could absorb more of the shock load? Based on what I just saw I’m thinking it would help to divide the load more evenly and the outer gussets would work more efficiently. If possible could you one day do another video and try this same setup again with a single gusset in the center plus the two on the outside? James
I think it should be clarified whether you’re going until you just see it break or how much tonnage force is being used to break it… That is a big factor
gussets should be used in addition to a welded joint as in the data sheet picture........your demonstration was poorly executed with missing joint and inner gussets welds and improper gussets placement
I searched, and I found exactly what I needed. Thank you.
Thank you for putting this information out there.
Very interesting! Gusset number 2 arguably has less weld but more strength! Goes to show proper fit up and joints are more important than a good weld
Very nice hands on video…
That was awesome!! Thank you for making this video!
great video
Interested to hear your response if you had time. I'm on the fence about agreeing with your analysis. I'm an mechanical engineering technologist so my background may not be enough to satisfy an answer here but none the less I'll outline my thoughts.
1) How can we say the second joint (gussets welded outside) is stronger?
- We don't have any data to backup how much force either of the joints experienced so comparison is difficult, eyeballing it I don't think is correct either.
-We also saw the second joint reached and exceeded the ultimate strength of the weld, leading to failure. Perhaps in shear or in tensile. Though looking at the loading I would think transverse shear of the weld and failure from that shear stress is what occurred in joint 2.
- The tubing may have not experienced any plastic deformation but we do see an overall failure of the joint at the weld. What does this say about it's integrity compared to a pound for pound comparison of joint 1?
2) Comparing the two joints we see that joint 1 did not fail but experienced plastic deformation, the tubing buckling on the face. Again we have no data for force applied but assuming they are the same in this experiment it would suggest that the first joint is stronger since it did not fail, though exceeded elastic deformation which is highly unfavorable, even worse then for joint 2.
-What does this say about the joint design? If the second joint were to have a larger safety factor perhaps it wouldn't have failed, but we would need to increase the first joint proportionally to have an equal comparison.
-If we are looking from a design and repair perspective perhaps not destroying the main member is the purpose of using joint 2? So disposal of gussets and replacement is more feasible, but the main member would need to be replaced regardless from the excessive stresses induced from the over loading.
Anyone can feel free to chime in, great video none the less!
ruclips.net/video/OzJQyTmNX3E/видео.htmlsi=fAMKeJZO5lqjlUZh
It would be nice to know the resistance in PSI that the Press was exerting on each weldment. Also a test of a gussets vs a triangulated brace would be of interest.
Thank you for the test.
A pressure gauge on the hydraulic line would have been a great idea!! I didn’t think of it when I made the video. Uugh!!
Yeah, it doesn't matter if one type of gusset damages the base metal less if the weight that it supports is considerably less than the other. I'm not saying that is the case here, but without some sort of weight / pressure gauge, we don't KNOW what is really happening.
The thing is that sometimes you have to mount a plate to the surface of something so you do need those internal gussets but I get where you're going with this
Doc. This was fascinating!!!!
What if we put a single gusset in the center and then the two on the outside ? Would it be possible that the single gusset on the interior could absorb more of the shock load? Based on what I just saw I’m thinking it would help to divide the load more evenly and the outer gussets would work more efficiently.
If possible could you one day do another video and try this same setup again with a single gusset in the center plus the two on the outside?
James
But if you weld the tubing and do the same gusset location with #1, what will happen?
Bender! Nice
Awesome
it's worth mentioning that this test shouldn't be necessarily extrapolated to other tube shapes or orientations or to solid tube necessarily.
why didnt you measure the force req for failure?
Fantastic, very informative!
How come you didn't weld the back of the tubing it's would have been stronger yet
instructions said to place the gusset edge in the midline.
I think it should be clarified whether you’re going until you just see it break or how much tonnage force is being used to break it… That is a big factor
gussets should be used in addition to a welded joint as in the data sheet picture........your demonstration was poorly executed with missing joint and inner gussets welds and improper gussets placement
I would of liked to see a better comparison. Should of at least welded all joints that make contact. To be honestly this wasn't a good enough test!
Would’ve = would have... To be honestly.
Oh( the music sucks….no need for it on a video like this
How come you didn't weld the back of the tubing it's would have been stronger yet