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Post by AtomHeartDragon on Jul 19, 2020 9:36:37 GMT
We all know that melty, ductile Whipples are the best, so does meltiness of k-slugs (regular ones and shrapnel, not radshield cheese) negatively impact their peformance? Would, say, a hypervelocity 1kg of carbon, osmium or tungsten deal appreciably more damage even after shattering compared to usual steels?
Has anyone ran any regular tests?
Do note that "meltiness" includes a few disparate properties like melting temperature, heat of fusion and heat capacity, possibly also boiling temperature and heat of vaporization.
Basically does the game model bulkhead and underlying components getting shotgunned by fragmented k-slug as opposed to being only gently singed by vaporized one?
Another question - can shattering be beneficial in limiting overpenetration and leaving more kinetic energy in the target?
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Post by doctorsquared on Jul 20, 2020 16:42:55 GMT
I’ve not run instrumented tests, but it would appear that the game’s model uses the tensile strength and force imparted by the projectile to determine if the k-slug overpenetrates or shatters. I’m unsure if fragmentation outside of flak is modeled, since the damage model seems to generate a mesh around the target and then uses the mechanical properties of the materials in the impacted volume to determine the effects.
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Post by AtomHeartDragon on Jul 20, 2020 20:18:13 GMT
OTOH the game does seem to model different failure modes for armour, does seem to model spall and (empirically) ductile and melty whipple shields tend to perform better, so the question is whether those same effects are modeled for slug material and whether it matters.
I can provide railguns for the testing.
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Post by doctorsquared on Jul 20, 2020 20:54:06 GMT
That would be a good option. I've been playing around with the stock 60mm cannon and tested out Amorphous Carbon, Calcium, Copper, and the standard Tungsten rounds and haven't noticed much difference.
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Post by AtomHeartDragon on Jul 22, 2020 20:17:14 GMT
That would be a good option. I've been playing around with the stock 60mm cannon and tested out Amorphous Carbon, Calcium, Copper, and the standard Tungsten rounds and haven't noticed much difference. Stock 60mm actually doesn't have almost any penetration. It fires wafer-thin disks. Even depleted uranium isn't of much help here. The reason why it's contrary to gameplay experience is that stock 60mm is very fast and accurate so its slugs hit pretty much the exact same spot and effectively drill through armour. Anyway, I'm attaching two railguns. One is good old 'Santa' firing coal amorphous carbon (that can also be gotten off Steam), the other is pretty much its equivalent, but firing maraging steel instead (based on jtyotjotjipaefvj redesign of 'Santa' - which is nice as I usually steal jt's guns instead ). Both fire 1kg slugs at 20km/s (that's 200MJ of blam) at same rate of fire. Feel free to throttle them down to test at lower velocities. Sadly they have different caliber, but that's not as easy to tweak as changing rate of fire.
RailgunModule _DCA "Santa" 900MW 126mm 200MJ Heavy Turreted Capacitor Railgun SteamWorkshopID 1607067371 Description Back on Old Earth naughty children traditionally received a lump of coal. This artillery piece reliably delivers whole kilogram of high-grade one at over 20km/s every second, ensuring rapid correction of behaviour by the way of being ho-ho-hosed and bursting with energy (200MJ of it) to change ways. UsesCustomName true PowerConsumption_W 9e+08 Capacitor Count 1 DielectricComposition Hafnia Dimensions_m 3.61 0.535 Separation_m 2.2e-05 Rails Composition Maraging Steel Thickness_m 0.26 Length_m 13.4 BarrelArmor Composition Graphite Aerogel Thickness_m 1.99 Armature Composition Amorphous Carbon BoreRadius_m 0.063 Mass_kg 1 Tracer Tungsten Payload null Loader PowerConsumption_W 22000 ExternalMount false InternalMount false Turret InnerRadius_m 3.29 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.2 AttachmentCount 1 MomentumWheels Composition Osmium RotationalSpeed_RPM 367 AttachedAmmoBay Capacity 1000 Stacks 1 TargetsShips true TargetsShots false
RailgunModule _DCA 20.0km/s 200 MJ 80mm Heavy Turreted Capacitor Railgun (700MW) Description UsesCustomName true PowerConsumption_W 7e+08 Capacitor Count 1 DielectricComposition Hafnia Dimensions_m 3.15 0.545 Separation_m 8.3e-06 Rails Composition Maraging Steel Thickness_m 0.331 Length_m 14.7 BarrelArmor Composition Graphite Aerogel Thickness_m 2.1 Armature Composition Maraging Steel BoreRadius_m 0.04 Mass_kg 1 Tracer Beryllium Payload null Loader PowerConsumption_W 24000 ExternalMount false InternalMount false Turret InnerRadius_m 3.55 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.195 AttachmentCount 1 MomentumWheels Composition Platinum RotationalSpeed_RPM 170 AttachedAmmoBay Capacity 2000 Stacks 1 TargetsShips true TargetsShots true
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Post by doctorsquared on Jul 23, 2020 21:36:00 GMT
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Post by BLDoom on Jul 25, 2020 21:00:12 GMT
Awesome. You guys are amazing. I've been testing armor models on and off but I haven't been a good scientist...I didn't record any of my findings.
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