All Questions
7
questions
0
votes
1
answer
58
views
Rotation of a tube
See image... why is it that in part 1 the answer is negative but in part 2 it is added instead of subtracted?
I thought because I got a negative in part 1 I would have to subtract in part 2 but the ...
1
vote
0
answers
29
views
Requirement : Open Source API providing properties of engineering materials [closed]
We are a bunch of four in the ultimate year of the 'Bachelor of Engineering - Mechanical' degree. Our final year project is titled 'Computer-Aided Part-Code Generator for industrial parts'.
For the ...
- 11
0
votes
2
answers
51
views
Will the material plastically deform or fail when heating or cooling?
You have a stainless-steel rod with constraints on both ends that is held rigid. Initially, it is at room temperature before getting heated to 300 Celsius. Then, it is cooled to room temperature again....
- 11
0
votes
1
answer
765
views
How do I properly scale down a force for scale-down model testing?
I am designing structural frame for a shipping container that would have 8000 lbs of weight stacked on top of it. Of course, i don't access to real size container. I have built a model whose scale is ...
- 1
10
votes
4
answers
28k
views
Why does the stress-strain curve decrease?
This is a stress-strain diagram
I have noticed that the curve decreases between points C & D and between E & F.
Why does that happen? I expected the curve to always increase since the ...
- 471
1
vote
1
answer
150
views
No increase in temperature during bending?
Good day, I am a mechanical engineering student, we conducted three-point bending test for a metal specimen and I am wondering why the temperature of the specimen did not increase as the UTM certainly ...
2
votes
2
answers
135
views
Why don't we often use polymerics for large scale structures?
Other than higher creep and relaxation moduli, why are polymerics rarely used for large scale structures, architectural, oil rigs, pipes, or other? It seems like, although they have weaker mechanical ...
- 313