/sci/ - Science & Math

OMFG YOU CALLED ITS /SCIENCEBOARD/!! THAT ISNT RIGHT! FUCK YOU!

oh wait: my post here:
>>3272113
amirite?

further apart

metal expands

herpa derp

erm, metal expands when heated, so i rekon they will get further apart.

That's a fucking weird shape.

Assuming absolute even heating the centres are going to stay in the same location

Well, the object will slightly inflate in a homogenous way.
Atoms will get slightly further apart from eac other, in all directions.

>>3272140
>>3272140
what? no. it will expand

EXPAND

>>3272129
>>3272131
>>Metal expands when heated

Is there anything that doesn't expand while heated, barred water and some proteins?

Depends on what metal they're made of. Antimony and Bismuth, and some of their alloys, do contract on heating and expand on cooling. (Also: Gallium expands as it is heated but contracts when it melts.) Generally they'll expand.

>>3272154

Water expands when it's heated.

OP, the shape will distort and be straightened a bit in the 2 inner curves where the 2 "circles" meet, diustortion will always follow the path where less resistance is met :towards the edges

so will the circle centres get further apart or stay in the same place?

WUT

>>3272169
this
>>3272160


The cercles won't go further away as they are no 2 distinct circles, they are, actually, one solid shape of metal; it won't behave like 2 independant circles....

i can run a finite element model simulation if anyone wants to see what actually happens?

iv got a bit of time and I don't think itd take me long

>>3272267
>>3272267
>>3272267
I would be interested

PROCEED

>>3272267
Please do, I'm eager to see if my predictions are correct.

here we go

the centres get further apart.

/thread

>>3272300
>>3272300
mind you this is an extremely rough model, i didnt even fillet the edges. But i'm pretty sure the deformation mode would still be accurate.

>>3272304
Hmmm.... I'm not quite sure if a low poly model can be an accurate representation of real world matter distortion in this case...

Is the heating totally evenly distributed ? The part where the 2 "circles" meet is thicker, it won't heat at the same rate as the rest. It could cause some variations on the end shape

>>3272313
It doesn't matter how simple or convoluted the model is. When a homogeneous object is uniformly heated (or cooled) the thermal expansion (or contraction) of the voids is exactly the same as the material itself.

>>3272313
>>3272313
lets see your model then

>>3272300
This is an elementary conclusion. If your simulation had said otherwise, it would indicate a problem with the simulation.

>>3272378
>>3272378
to be honest I just wanted to play around in ANSYS. this seemed a good oppurtunity.

>>3272300
>>3272300
son i am impress

i guess /sci/ isn't full of retarded highschoolers and biology majors afterall

why is this such a big deal, its obvious that the holes will move apart, you can just

>>3272300

How big is that mesh!?

Steel heated to 600ºC from 0ºC

Displacement is scaled 100x

You can tell that the holes are no longer circular and due to the higher strain on the thinner sections the general center points have moved further apart.

Actual displacement will be no where near as visual.