I'm studying the bumper crashbox of vehicle, especially for formula SAE (where I find lots of information), and there are various design: square box, triangle, cone, foam, honeycomb...
But I see that the australian bull bar, for this purpose, are bolted to the chassis in slotted holes, so during...
Good morning.
I have the structure in picture. The material of the beam is steel S235.
The real F is 350N, but I continuosly put and remove the load, so I take into account 2*F (found by match the elastic and potential energy, 0.5*k*x^2 = m*g*x).
I found a stress of 453 MPa, so this beam...
I have to calculate this type of problem:
In the right a steel pipe, with internal temperature "Ti" constant. In the left, another pipe that "shots" air at certain velocity and temperature.
I want to calculate the equilibrium temperature of the right pipe.
Do you know if exhist some...
It's a well known engineering rule that inside a component, the change of section must be gradual, to not create a stress-concentration zone.
But the same rule should be applied between components?
I'm thinking about the motorcycle fork and the motorcycle chassis: when braking, the fork and the...
I have to choose between Hex (external) and Allen screw drives.
In my opinion, these are the pros/cons:
Hex, pros:
- less risk of strip
- possibility to use a pliers, if stripped
- possibility to put more torque in it
- thinner head
Hex, cons:
- aesthetically, not beautiful
- in a...
Good morning, I need to made an hand calculation of this component:
I verified it also with FEM, but I want to find the right theory to calculate it by hand.
1)I found the neutral line.
2)I calculate the stress on the lower and upper surface with the beam theory (but the L/H ratio is very...
