Material explosion under pressure

[Crazymechanic]

Now we knwo that materials tend to rapidly expand (explode) under given circumstances , like a wire subjected to sudden , rapid overcurrent or like a ball of hot flammable gas when heated or otherwise.

Now I wonder what would happen if we had the ball of some heated rapidly expanding gas or mixture inside , and when it would explode ,shortly before that we would apply a pressure which is opposite to that of the ball ? How high we could go in terms of pressure and not break the material that encloses the gas inside the ball.

In other words if one applies ever increasing but perfectly opposite forces and there is a material of some sort in the middle , what then is the limit after which something destructive happens to the material or whatever is in the middle or maybe there is no limit then , if the forces are pefectly opposite to one another?
Now the forces would cancel out in the middle but the pressure would still be there.


Also if we would put a piece of copper wire in a sealed pressurized container, would the sudden surge of amperage needed to blow that wire apart , increase if we would increase the the pressure that surrounds the wire?
Just like water boiling temperature rises proportionally to water pressure.

 

[mfb]

If you heat the copper wire too much, you get a plasma at some point.

For pressure without too much heat: the materials will compress, the chemical structure might change a bit, but the material will still be there (it cannot escape...). As an example, iron in the core of our Earth (a pressure that can be reproduced in the lab) is more dense than iron on the surface, but it is still solid iron.
At some point you reach the density of white dwarfs and then neutron stars, and if you have enough material and pressure you get a black hole.

 

[Crazymechanic]

so basically if one takes away super high temperatures and radiation damage to a substance or metal then it can sustain enourmous pressures if they are applied structurally right , like a symmetrical pressure equal from all sides to a spherical ball etc?

 

[mfb]

Well, what is "sustain"? It will probably lose its structural strength like resistance to sheer stress, but it will still be there (resisting pressure due to its compression).

 

[PJC01]

I find this topic very intriguing and it raises many questions about the behavior of materials under pressure and extreme conditions. It is important to note that material explosion under pressure is a complex phenomenon and can vary depending on the type of material and the amount of pressure applied.

In general, when a material is subjected to pressure, it tends to compress and become denser. However, when the pressure exceeds a certain limit, the material may reach its breaking point and either deform or explode. This limit is known as the material's compressive strength and it varies for different materials.

In the case of a ball of hot flammable gas, when rapidly heated, it will expand and exert pressure on the surrounding material. If we were to apply a force in the opposite direction, we could potentially counteract the pressure and prevent the material from breaking. However, as you mentioned, there may be a limit to how much force we can apply without causing damage to the material. This would depend on the material's tensile strength and its ability to withstand external forces.

In terms of your question about the copper wire, the sudden surge of amperage needed to blow it apart would not necessarily increase with an increase in pressure. This is because the wire's resistance would also increase with the increase in pressure, causing the current to decrease. However, it is possible that the wire may reach its melting point at a lower pressure due to the increase in temperature caused by the increased resistance.

Overall, the effects of pressure on materials are complex and require further research and experimentation to fully understand. It is important to consider all factors, such as the type of material, the amount of pressure applied, and the forces acting on the material, in order to accurately predict its behavior.