Search results for query: *

Hey guys, I've been thinking... Isn't this just a matter of perspectives? Both analyses are right, with the difference is just on the way we choose what force is applied to what plane/area. Because from then, the principle of statics will follow, thus yield the two conclusions. Right...?

@Snickster. Yes, it was my mistake to use the point load on the simulation. The load is intended to be distributed towards each stair surfaces, so it supposed to be a distributed force, not a point load.

Update: I've tried to simulate my problem using autodesk inventor, and below is the result. This aligns to the results obtained through the second solution. However, it still bugs my mind because I don't understand why the first solution is wrong.

@Denial The staircase is indeed an individual stiff lump, not three individual stiff lumps sitting side-by-side.

@GregLocock Okay, maybe I didn't define the problem well. Consider the object is supported by a frictionless ground, thus R is generated from the ground. There is no force on the x-direction. Maybe the picture below could illustrate the initial problem better.

@MJCronin It's not a homework problem. It's a made up problem by me because I was trying to understand stress distributions in a similar problem. The magnitude of the force and the dimensions is all made up, so don't mind the numbers. I just need to know how the calculations for this works.

Hey guys, so I'm trying to understand how stress analysis is done through hand calculation. The picture below shows my analysis of an example problem that I'd worked at. From that picture, I got the value of the stresses on the object which are σ1, σ2, and σ3. However, if I do the analysis...