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Post by treptoplax on Jul 29, 2017 0:42:51 GMT
How do those tin can armor schemes fair against semi competitive rail guns (1g at 100+ km/s). In my limited testing, it holds up a adequately against 30-50 Km/s fire (quite a long time on sloped, and a few seconds of fire from the side) and does well against the AE rail/flack guns (multiple hits in same area needed to penetrate, little affect on heavily sloped armor). I don't have a 1g/100Km gun handy myself... |
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Post by Enderminion on Jul 29, 2017 2:21:40 GMT
I have a 1/137 rail ready
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Post by cyborgleopard on Aug 3, 2017 20:34:50 GMT
I've heard talk of composite Whipple shields, and I will look into them at some point. For now; I want to share with you single-layer Whipple my results with them. I got a lot of suggestions to test materials and ran some of them, along with some of my own. The winners I see here are:
1.Platinum -Expensive, best performance. Really theres no reason not to use it; since Whipple shields rarely factor much into the cost of a spacecraft.
2.Tin -Strong Preformance, cheap.
3.Copper -Not as cheap as tin and slightly worse performance, but still has a fairly competitive survival time.
4.Gold -If you absolutely have to have a ship with a bright shiny gold layer on the outside, it's actually a plausible shield. Your performance will be a little worse than a comparable layer of copper.
Aluminum had pretty poor performance in these tests, losing out to everything I tested except Lead. Also do note that I tested these Whipple shields stuffed (exact configuration is on the spreadsheet).
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Post by ravingmaniac on Aug 4, 2017 1:58:29 GMT
Strange that lead does so poorly, considering that it has the softness and density
How well do cadmium and osmium do? They're dense, and give the ship a nice black color-scheme
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Post by AdmiralObvious on Aug 4, 2017 18:55:07 GMT
Strange that lead does so poorly, considering that it has the softness and density How well do cadmium and osmium do? They're dense, and give the ship a nice black color-scheme I know from experience that Osmium is extremely good as an inner layer armor, considering it's got a very good yield strength, and an exceptionally good Tensile strength, meaning it's really hard to penetrate, but (comparatively) easy to bend (at least compared to diamond, which will break first, or VCS, which is great in general as armor, but tends to melt). It might spall a lot though while bending, as a result of the difference between Tensile and Yield, and speed of sound. |
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Post by Enderminion at WCC on Aug 4, 2017 20:40:45 GMT
Strange that lead does so poorly, considering that it has the softness and density How well do cadmium and osmium do? They're dense, and give the ship a nice black color-scheme I know from experience that Osmium is extremely good as an inner layer armor, considering it's got a very good yield strength, and an exceptionally good Tensile strength, meaning it's really hard to penetrate, but (comparatively) easy to bend (at least compared to diamond, which will break first, or VCS, which is great in general as armor, but tends to melt). It might spall a lot though while bending, as a result of the difference between Tensile and Yield, and speed of sound. sooo, not the inner layer because you need a spall liner |
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Post by AdmiralObvious on Aug 4, 2017 21:29:50 GMT
I know from experience that Osmium is extremely good as an inner layer armor, considering it's got a very good yield strength, and an exceptionally good Tensile strength, meaning it's really hard to penetrate, but (comparatively) easy to bend (at least compared to diamond, which will break first, or VCS, which is great in general as armor, but tends to melt). It might spall a lot though while bending, as a result of the difference between Tensile and Yield, and speed of sound. sooo, not the inner layer because you need a spall liner Well, ONE of the inner layers. It works great as a backing under the whipples with some distance, since it won't melt much. |
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Post by Rocket Witch on Aug 5, 2017 4:12:08 GMT
2.Tin -Strong Preformance, cheap. Anyone tried using zinc? About 1.1c/kg cheaper than tin for similar density, but it is harder. |
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Post by midnightdreary on Aug 5, 2017 5:08:21 GMT
2.Tin -Strong Preformance, cheap. Anyone tried using zinc? About 1.1c/kg cheaper than tin for similar density, but it is harder. I usually use tin as part of an anti-spalling composite layer with diamond on top. I am going to take a closer look at zinc for sure, but I think it's more brittle. |
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