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Post by Rocket Witch on Mar 5, 2017 22:12:29 GMT
are there any particular properties of spider silk that make it a better choice over s-glass or the other fiber materials? It's the lightest and by far the cheapest proper fiber (ie. excluding aerogels and microlattice) and it stretches very easily. So you can layer it on multiple centimeters thick without breaking the bank (though we'd have to test how this compares to thinner layers of equivalent cost made from other fibers) and it should hopefully catch rounds like a web catches insects. If you watch a slow-mo of a web in action you'll see it deforms by up to a foot and springs back. I like the idea of it as an innermost layer to catch rounds after they're slowed by other layers in front, possibly including another more rigid fiber as a primary spall liner while the silk consumes the reduced spall cone.
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Post by kaiserwilhelm on Mar 6, 2017 15:03:17 GMT
Woulnd you want something brittle like as ceramic as a whiple shield
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Post by newageofpower on Mar 6, 2017 15:07:59 GMT
Diamond with an amorphous carbon heatsink backing layer works as a combined laser/kinetic armor. I've found Diamond/Boron to be superior against kinetics, but anti-laser resistance decreases.
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Post by Enderminion on Mar 6, 2017 15:10:16 GMT
Diamond with an amorphous carbon heatsink backing layer works as a combined laser/kinetic armor. I've found Diamond/Boron to be superior against kinetics. Diamond/A-carbon is laser armour first, it also happens to stall kinetics
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Post by David367th on Mar 6, 2017 15:11:33 GMT
You could have an Aramid Fiber insert to deal with lasers.
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Post by caiaphas on Mar 6, 2017 15:45:36 GMT
Woulnd you want something brittle like as ceramic as a whiple shield Because that's not how Whipple shields work. I'd read the wiki article for a more nuanced explanation, but basically its purpose is not to resist incoming hypervelocity dust but to act as a sacrificial layer, vaporizing the projectile into plasma as it hits. Granted, using something as brittle as a ceramic might lead to cracking on impact, but eh. Doesn't interfere with its function.
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Post by tukuro on Mar 6, 2017 17:21:59 GMT
I'm using this as universal cost-effective light-weight armour for capital ships: - 0.5 mm of Tin/Cadmium/Lead bumper material. They're all relatively dense, but with low melting temperatures and specific heat that ensures the shield vapourises upon impact. This prevents the creation of a solid spall cloud that can damage internal modules. I've also tested osmium and tungsten carbide as outer bumpers, but these aren't cost effective and also have a tendency to create secondary debris. Lead and cadmium are slightly more expensive (in that order). Though cadmium has a slightly higher speed of sound, while lead is more likely to melt into plasma.
- 20 cm of Graphite Aerogel stuffing, which doubles as laser armor with the fix posted in the materials forum.
- 0.5 mm of Boron spall liner, which also serves as structural material to prevent ship breakup. In tests it appears to behave slightly better than amorphous carbon. Even though the latter has a higher speed of sound.
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Post by gedzilla on Mar 6, 2017 18:03:43 GMT
I'm using this as universal cost-effective light-weight armour for capital ships: - 0.5 mm of Tin/Cadmium/Lead bumper material. They're all relatively dense, but with low melting temperatures and specific heat that ensures the shield vapourises upon impact. This prevents the creation of a solid spall cloud that can damage internal modules. I've also tested osmium and tungsten carbide as outer bumpers, but these aren't cost effective and also have a tendency to create secondary debris. Lead and cadmium are slightly more expensive (in that order). Though cadmium has a slightly higher speed of sound, while lead is more likely to melt into plasma.
- 20 cm of Graphite Aerogel stuffing, which doubles as laser armor with the fix posted in the materials forum.
- 0.5 mm of Boron spall liner, which also serves as structural material to prevent ship breakup. In tests it appears to behave slightly better than amorphous carbon. Even though the latter has a higher speed of sound.
That design doesnt seem to have a good layer against kinetics. The grapheogel is a good defense agianst lasers and nukes, but not kinetics
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Post by tukuro on Mar 6, 2017 18:12:37 GMT
That design doesnt seem to have a good layer against kinetics. The grapheogel is a good defense agianst lasers and nukes, but not kinetics On the contrary, it's both effective and economical. Though it's designed to counter high-velocity (15 km/s) projectiles/needles, rather than multi-kg cannonballs. It's a comparatively cheap setup that's never more than 10% of the total cost on my ships and less than 1% of total mass.
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Post by Enderminion on Mar 6, 2017 18:12:48 GMT
gedzilla it has a wipple shield and spall liner so against small fast bullets it is wonderful but if you start slinging larger slower rounds...
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Post by Enderminion on Mar 6, 2017 18:16:35 GMT
That design doesnt seem to have a good layer against kinetics. The grapheogel is a good defense agianst lasers and nukes, but not kinetics On the contrary, it's both effective and economical. Though it's designed to counter high-velocity (15 km/s) projectiles/needles, rather than multi-kg cannonballs. It's a comparatively cheap setup that's never more than 10% of the total cost on my ships and less than 1% of total mass. not enough armour for my tastes, I used (on the front of my big ship) Diamond (1mm) -> A-carbon (Centimeters) -> Diamond (0.5mm) -> A-carbon (centimeters) -> Aramid Fiber (a foot) -> Iridium (1cm) -> Boron (14cm) -> Para-Aramid Fiber (5cm)
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Post by gedzilla on Mar 6, 2017 18:19:11 GMT
gedzilla it has a wipple shield and spall liner so against small fast bullets it is wonderful but if you start slinging larger slower rounds... As far as I know, the wipple shield is designed to be a sacrificial layer that shocks the projectile into an expanding cone of gas, so the impact to the main layer is spread out over a far larger area (allowing it to take the hit easier), and then the spall liner is their to prevent the main armor from spalling to to tje shockwave being transmitted thru the armor. His design seems to have everything but the main layer which takes the impact of the (now expanding in a cone of gas) projectile.
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Post by Enderminion on Mar 6, 2017 18:20:13 GMT
gedzilla the shields are stuffed and Boron is strong so it does not matter as much
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Post by gedzilla on Mar 6, 2017 18:20:34 GMT
On the contrary, it's both effective and economical. Though it's designed to counter high-velocity (15 km/s) projectiles/needles, rather than multi-kg cannonballs. It's a comparatively cheap setup that's never more than 10% of the total cost on my ships and less than 1% of total mass. not enough armour for my tastes, I used (on the front of my big ship) Diamond (1mm) -> A-carbon (Centimeters) -> Diamond (0.5mm) -> A-carbon (centimeters) -> Aramid Fiber (a foot) -> Iridium (1cm) -> Boron (14cm) -> Para-Aramid Fiber (5cm) How good is iridium, and what is it best agianst ?
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Post by Enderminion on Mar 6, 2017 18:22:34 GMT
gedzilla Iridium is one of the denser materials like tungsten and osmium and depleted uranium. I used Iridium because its dense
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