2 questions re; .338

[delta9mda]

if doing a monocore .338, would a wall of .1023 (ss) be enough (o.d. of 1.5") for the outer tube and what should the bore be for .338?

[PaulNoiseLess]

Hi,

How long is it ?

Best,

Paul

[daviscustom]

I didn't think you were a monocore fan...what's up with that?

What kind of design you kick'n around?

[jus2311]

4,812.6 ft·lbf

(47,137 psi)


go with .125"

[delta9mda]

Jus, understood.

a bro asked me what wall thk to use and i said i will find out for him. im still not a mono-core fan. dont worry im not changing my mind.

Paul, i think 9".

[daviscustom]

You had me wondering if I had somehow ended up in Bizarro world there for a minute.

[delta9mda]

no sir. i got a bro that has to do a mono-core and of course ill help any way i can. we dont want to make a stainless grenade!

im just not a mono-core fan although i do recognize what aac has done with the titan and the cyclops etc.

i have stood next to the cyclops at the 08 and 09 shoots and i was amazed how it tames the blast.

[Bowen1911]

well-

for a thin walled pipe


P=(2*S*T)/(OD*SF)

where:
P = ID pressure (psi)
T = Wall thickness (in)
OD = Outside Diameter (in)
SF = Safety factor
S = Material strength (psi)

OD=1.5
T=.1023
S=60000 (assuming 316 SS)
and with varying safety factors:

SF=1 => Yield pressure= 8200 psi
SF=1.5 => Yield pressure= 5500 psi
SF=2 => Yield pressure= 4100 psi
SF=3 => Yield pressure= 2700 psi


But- A silencer isn't technically a pressure vessel, as it sees some impact loadings, and fatigue, and temperature differentials.


I wouldn't have any problem testing that out though.