Thank you, I got all the information needed the most from your video...

Thank you, I got all the information needed the most from your video.

I had never thought of metals as containing small voids leading to failures before. Somewhat eye opening. Thanks for the video!

@Ariccio123

3 жыл бұрын

Jet engines have lots of high tech metals to deal with high temperature and high load. I think they use single-crystal blades in combat aircraft for this kind of reason! I believe the methods used to manufacture them are highly classified, because anybody who can make them, has a massive advantage 👍

Thanks! That was awesome. I’m 10 years late.

Clear voice, Nice explanation and understood well

If anyone wants to study concepts such as this in depth, "Deformation and Fracture Mechanics of Engineering Materials" by Richard Hertzberg is the best place to start

This is interesting! I think of metal fatigue every time I twist my guitar strings at the tuning peg to eventually break it perfectly without a point sticking out to prick a finger.

great teaching aid. thanks

Nice explanation. However, for 2 phase component that is a compound with 2 elements. The failure could occur from voids, cavities, de-coherent of second phase particle or even an inclusion (external particles added for extra functions) and the image shown at 1:06 could represent any of mechanism mentioned earlier and not only voids. Voids and cavity are different, void arise from when arranging the structure, whereas cavity is formed due to the removal of a particle.

Did you ever expand this simulation out to use randomized size / shaped voids more akin to realistic forged metal voids? It seems like one could take several types of failures and use the fail patterns to approximate the original void structures.

very interesting study. and this was 3 years ago. I wonder how the accuracy of prediction now and is it commercialized?

i am understand your videos,so very useful me

Was looking up Metal Fatigue actually. A vid about that would be rad.

thanks

I liked this video.. tell me some more.

Very interesting.

thankful bro

Great teaching Pls failure investigations videos

Is what you do called “finite element analysis?I am not a materials science professional but I do watch lots of material science videos, and I’m trying to connect the dots between many different presentations.

I didn't understand the concept of voids in metals. We all know an atom is almost void or hollow, size of nucleus only corresponds to the size of a football placed in the middle of a soccer field. If we look in this way, why only metals, even non metals have lots of voids. But non-metals are neither ductile nor malleable, so the concept of "fail" doesn't apply to them. Please enlighten us more on what you mean by voids.

@AHDKDYRARYDJISOEWKEN

5 жыл бұрын

the voids he is talking about are on a microscopic scale NOT an atomic scale. The voids might be a few micrometers in diameter.

if we create a part without any defects, could we prevent fatigue?

Great 👍 👌

Very interesting video. As our buildings and infrastructure age, I wonder if fatigue will begin to show. Will the steel in the Empire State building that was once ductile begin to chrystalize and become brittle with time? The structure is approaching 100 years old. The woolworth building is now 100 and the cables in the Brooklyn bridge are even older. Interesting study

@rahulsoni5459

7 жыл бұрын

strain hardening

@rahulsoni5459

7 жыл бұрын

strain hardening

@chibuyembasela3864

6 жыл бұрын

CHAS1422

That's a very simple description of what happens but doesn't explain why. For anyone wanting to know more in depth, they should look for videos on dislocations within metals.

@noamorwell

5 жыл бұрын

How are dislocations related to voids?

@TheGuruNetOn

5 жыл бұрын

@@noamorwell I think it's related to dislocations from a regular crystal state to a less than regular crystal lattice structure. If a crystal is grown in outer space there are less/zero dislocations or imperfections in the crystal lattice structure as compared to a crystal grown under influence of gravity. These irregularities in lattice structure act as weak points when the metal is put under stress. Just my 2 cents worth. Corrections are welcome.

oonce oonce this music is pog

@elitehumpty3603

3 жыл бұрын

Yes i agree

Who else is watching this and thinking about their buhurt kit?

Admite, vieste aqui ter porque estás no *Técnico* ;)