Not being a mechanical engineer, I don't have an intutive feel for how the additive nature of the pressure develops as you describe. I would have thought that

Not being a mechanical engineer, I don't have an intutive feel for how the additive nature of the pressure develops as you describe. I would have thought that the outer layers would start to compress the inner layers, relaxing some of their stress. Is the a mech-e 101 type of link you could pass along to help get me up to speed? Or maybe you are saying that 3.6 GPa times the ratio of 100 mm to 1 mm gets us to the 360 GPa mark? So you don't need to have layers of Kevlar as your "anvil", you could use something else more rigid, and just wrap one layer of Kevlar around it and develop the needed pressure. Thanks.