China's SCS Strategy Thread

[FairAndUnbiased]

The steel used on Seawolf class submarines is HY100, it can withstand 100 KSI. It is made to survive far more than 1 kg of tnt, think 500KG (mk48 torpedo)

5 MJ kinetic energy as deformation work over about 1m (roughly the size of the dent) is 5 MN of force. If it hit a corner with cross section a 1 cm2 (a pretty blunt corner, 0.0001 m2) then the pressure comes out to 50000 MPa of pressure or 7200 Ksi.

Rough estimates. But it shows that it is possible to at least dent. Once dented the pressure at depth is no longer evenly distributed and a hollow structure - like a sonar dome or ballast tank - gets crushed.

 

[VioletsForSpring]

5 MJ kinetic energy as deformation work over about 1m (roughly the size of the dent) is 5 MN of force. If it hit a corner with cross section a 1 cm2 (a pretty blunt corner, 0.0001 m2) then the pressure comes out to 50000 MPa of pressure or 7200 Ksi.

Rough estimates. But it shows that it is possible to at least dent. Once dented the pressure at depth is no longer evenly distributed and a hollow structure - like a sonar dome or ballast tank - gets crushed.

We didnt see this occur with the San fran collision though, half of the sonar dome was squished and a good chunk of the front of the submarine was cleaved off, yet the dome still remained attached.

 

[plawolf]

5 MJ kinetic energy as deformation work over about 1m (roughly the size of the dent) is 5 MN of force. If it hit a corner with cross section a 1 cm2 (a pretty blunt corner, 0.0001 m2) then the pressure comes out to 50000 MPa of pressure or 7200 Ksi.

Rough estimates. But it shows that it is possible to at least dent. Once dented the pressure at depth is no longer evenly distributed and a hollow structure - like a sonar dome or ballast tank - gets crushed.

Sonar domes are not hollow but flooded when in use.

 

[Engineer]

My theory: The submarine got caught inside of China's territorial water so PLAN prosecuted the sub with an actual torpedo or depth charges.

 

[VioletsForSpring]

My theory: The submarine got caught inside of China's territorial water so PLAN prosecuted the sub with an actual torpedo or depth charges.

Quite absurd, there is historical precedent for US subs running into sea mounts, and a torpedo would cause far more damage.

 

[antiterror13]

My theory: The submarine got caught inside of China's territorial water so PLAN prosecuted the sub with an actual torpedo or depth charges.

Interesting theory, it is not impossible though ... even unlikely in my opinion

 

[VioletsForSpring]

Interesting theory, it is not impossible though ... even unlikely in my opinion

the YU-6 torpedo would crack a submarine in half, no seawolf would be left and we would most likely see sanctions thrown around like free candy.

 

[Overbom]

I think a more realistic theory is that the Americans messed up and an accident happened. I would rather put the blame into human incompetence than anything else

 

[VioletsForSpring]

I think a more realistic theory is that the Americans messed up and an accident happened. I would rather put the blame into human incompetence than anything else

It's hard to blame it on anything other than flawed mapping of the SCS topography, I do wonder how the USN will disciple the sub's crew.

 

[Overbom]

It's hard to blame it on anything other than flawed mapping of the SCS topography, I do wonder how the USN will disciple the sub's crew.

The sub's crew can only work with whatever they are given. If the USN is giving them outdated map data then I don't see how the sub's crew is at fault