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Nov 13, 2019 at 11:33 answer added Starfish Prime timeline score: 2
Nov 13, 2019 at 1:22 comment added mothman Perform a "Trade Study". Choose criteria (mass, radiative shielding, cost, etc), rank the criteria for importance, and put in each of the materials values. Normalize and multiply by the criteria rank, sum to get the rankings of overall performance for your criteria. Choose the best performing material with objective evidence to support your choice.
Nov 12, 2019 at 22:25 comment added nirurin This is for a ship that will undergo thrust, but only on a relatively small scale. It won't ever be subjected to the high G's of liftoff, it'll be built in orbit to travel between orbits. Ion engines. Continuous low thrust. It is designed with a spinning section for habitation, which will be under a constant 1Gish of force, but again I wouldn't say that qualifies as heavy thrust. Radiation is a concern. However it seems that the choice is to either go with 7+meters of water or regolith, or no shielding at all, and you end up with the same risks either way.
Nov 12, 2019 at 14:11 comment added Carl Witthoft Is this for a ship which will never undergo thrust (acceleration from local engines), or for a ship which is intended to move from place to place in zero-g environments? It makes a big difference. Not to mention that choosing materials which can block radiation is important as well.
Nov 11, 2019 at 21:12 history asked nirurin CC BY-SA 4.0