Unfortunately (for discussion purposes) and fortunately (for national security purposes), all data relating to the design vulnerability and survivability testing of U.S. Navy ships is classified at the Secret level. Has been that way since the end of WWII.
We build them very strong but we are not about to tell the enemy just how strong.
Well, unfortunately and sometimes things like a nuke submarine runnning head-on into an underwater mountain at almost 40 MPH then makes it back to port on its own.....kinda gives them an indication as to how strong.