Suppose that you are making preliminary design calculations for a deep submersible vehicle that is to have a cylindrical hull with hemispherical ends and a 1.5-m radius. At its operating depth, the...

Suppose that you are making preliminary design calculations for a deep submersible vehicle that is to have a cylindrical hull with hemispherical ends and a 1.5-m radius. At its operating depth, the internal pressure will be 1E5 Pa, and the external pressure will be 330E5 Pa. Choose an aluminum alloy from Appendix B, and determine the necessary thickness of the hull so that it has a safety factor FS = 2.