Recent content by Mark27

Hehehe. Okay, I think I get some ideas how to do it now. Thank you SteamKing. You help me a lot :)

Yes, i need to satisfy the design requirement. So, i know that pressure at 8000m seawater is: ρgh = 1025*9.81*8000 = 80.4MPa So, my concern right now is that should i just make an assumption of the internal pressure which is external pressure & internal pressure = 80.4MPa Or Take...

This question is actually more to open ended question. I need to design the theoretical submarine using Matlab but need to confirm some formulas. I believe my problem right now is to find the right formula for uniform stress which acting on the submarine which is radial stress and hoop stress...

Thank you SteamKing for the answer. Actually I'm not sure whether to include the internal pressure or not. This really helps me a lot. Thank you.

Homework Statement Hello.:smile: I need help to design a spherical vessel submarine with minimum mass which can withstand water pressure at depth of 8000 meter. It must satisfy this conditions: 1. vessel shall have minimum interval volume of 10m^3 2. outer diameter must less than 5m...