All Questions
7
questions
0
votes
2
answers
427
views
Good estimates for torque generated while turning a dial
I'm trying to design a little device which is hand-driven and which involves turning a bevel gear pair. I want a small gear pair but I don't want it to be weak. The forces involved will be small (it's ...
- 119
0
votes
3
answers
307
views
Best support for a granite table top?: Flat bar 316L Stainless Steel or equal box section or unequal box section
Project is outdoor granite topped table. Table legs are two isosceles trapezoids crossed together at 90 degrees, with the legs having an internal angle of 80 degrees, made from 100 x 100 x 4mm 316L ...
- 9
1
vote
1
answer
140
views
Boron Carbide Shattering a Bullet
Does anyone know how this works? I hypothesize that the reason that the bullet shatters is that boron carbide is much harder than the copper of the bullet. Does anyone think that this may be made into ...
- 361
2
votes
2
answers
992
views
Fillet weld strength calculation
I have 2 plates that are fillet welded to each other. How can I determinate the max force the weld can take before it cracks?
The plates are only welded on one side because the other side is not ...
- 312
4
votes
2
answers
706
views
How to determine tensile strength while the normalised tensile strength is known?
I try to design a shaft with yet unknown diameter, i know the distribution of forces and stresses (shear, torsion and normal) in/ along the shaft. I need just one more parameter nl. the tensile ...
user14407
2
votes
1
answer
175
views
Most efficient fillet design given an envelope (for stress)
If one has a specified allowed X length and Y height, into which a fillet can be placed to reduce stress concentrations, is there an equation which can be used to determine the optimal shape of the ...
- 131
0
votes
2
answers
213
views
mean fatigue strength
In context of machine design, what is mean fatigue strength? (as I am thinking I am mixing it up with midrange strength)
In my class we deal a lot with steels and this is a low strength steel, but I ...
