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Author Topic: Non-metal, effective weaponry?  (Read 3287 times)

Wannabehero

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Re: Non-metal, effective weaponry?
« Reply #30 on: September 09, 2014, 04:41:23 pm »

I personally always mod glass/ceramic weapons into my personal games.  Not every weapon, but glass/ceramic arrows and spears, glass axes, ceramic trap components (spiked ball, menacing spike, and some custom trap components), chert axes/spears/arrows.

Gemstone weapons always seemed very silly to me, but in high fantasy they are definitely a thing, and DF is pretty ridiculous at times, so IMO if it makes you happy, do it!

If you envision your dwarves having supernatural crafting skills (which of course they do), there are some advanced ceramic materials with amazing mechanical properties, they just require incredible control of composition and processing parameters.  Fibril-type crystalline intersticial growth in highly densified ceramics can create ridiculously high-strength and impact/shock resistant ceramics, far more-so than what most people commonly can conceive from their experiences with earthenware/stoneware.  Ceramic/Metal composite materials can also possess some pretty astounding strength for their stiffness.

Great, now I want to mod in a series of reactions to create warceramics from purified clays, sands, and stones.  Now they will fear my dwarves wielding ceramic/metal matrix composite weapons and armor.
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NullForceOmega

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Re: Non-metal, effective weaponry?
« Reply #31 on: September 09, 2014, 06:13:10 pm »

I'd DL that, sounds like fun, I like to embark on clay and sand anyway.
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IRIS_EYE_AZURE

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Re: Non-metal, effective weaponry?
« Reply #32 on: September 09, 2014, 06:50:43 pm »

Code: [Select]
[INORGANIC:DIAMOND_LY]
[USE_MATERIAL_TEMPLATE:STONE_TEMPLATE]
[TILE:15][IS_GEM:light yellow diamond:STP:OVERWRITE_SOLID][DISPLAY_COLOR:7:7:1][MATERIAL_VALUE:30]
[SPEC_HEAT:409]
[IGNITE_POINT:11440]
[MELTING_POINT:NONE]
[BOILING_POINT:16708]
[MOLAR_MASS:1201]
[IMPACT_YIELD:210000000]
[IMPACT_FRACTURE:420000000]
[IMPACT_STRAIN_AT_YIELD:47404]
[COMPRESSIVE_YIELD:210000000]
[COMPRESSIVE_FRACTURE:420000000]
[COMPRESSIVE_STRAIN_AT_YIELD:47404] bulk modulus 443 GPa
[TENSILE_YIELD:60000000]
[TENSILE_FRACTURE:120000000]
[TENSILE_STRAIN_AT_YIELD:4918] young's modulus 1220 GPa
[TORSION_YIELD:60000000]
[TORSION_FRACTURE:120000000]
[TORSION_STRAIN_AT_YIELD:4918]
[SHEAR_YIELD:60000000]
[SHEAR_FRACTURE:120000000]
[SHEAR_STRAIN_AT_YIELD:12552] shear modulus 478 GPa
[BENDING_YIELD:60000000]
[BENDING_FRACTURE:120000000]
[BENDING_STRAIN_AT_YIELD:12552]
[ENVIRONMENT_SPEC:KIMBERLITE:CLUSTER_SMALL:100]
[SOLID_DENSITY:3520]
[STATE_COLOR:ALL_SOLID:CREAM]

I decided to get Diamond's actual properties and, uh.

It's actually stronger than Adamantine by an order of magnitude. It said that the tensile strength was "60 GPa"; Adamantine is 5 GPa. What.

Adamantine also has 5000000/0 young's, bulk and shear modulus, though, so that's a bit different.

Diamond's actual properties? Those are theoretical values obtained at the molecular (nanometer) level. If I wanted "actual" properties, I'd use this information (from wikipedia):
Quote
A diamond will shatter if hit with an ordinary hammer. The toughness of natural diamond has been measured as 2.0 MPa m1/2, which is good compared to other gemstones, but poor compared to most engineering materials.


I'd rate the practical impact strength at no more that 10 MPa (back of the envelope calculation of impact from a hammer strike). Yield should be the same, so strain at stress is zero (simulating the shatter effect).

To be fair, there's much nonsense in the vanilla materials data as well.

Do I have a point? perhaps two:
1) numbers don't always make better "data".
2) mod what you want... but if you want broad acceptance of your mod, watch out for features that require suspension of disbelief (gem weapons that never break)
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Putnam

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Re: Non-metal, effective weaponry?
« Reply #33 on: September 09, 2014, 06:52:48 pm »

I wasn't gonna put that into a mod, heheh.

Also, weapons can't break under any circumstances.

GavJ

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Re: Non-metal, effective weaponry?
« Reply #34 on: September 09, 2014, 07:16:54 pm »

Quote
Also, weapons can't break under any circumstances.
Toady has so far made up for this by simply not letting you make weapons out of metals that would be unfairly advantaged due to this lack of a feature.

For example, a golden hammer would in reality deform into a bent, useless mess in like 5 minutes. Therefore, if you were allowed to build them anyway in a game where weapons cannot break, then a golden hammer would be really unfairly superpowered above what it should actually be, because its one primary weakness isn't possible. Thus, he just doesn't let you.

So if I were considering other materials for a mod, I would personally follow Toady's lead on that for consistency, and just disallow construction of weapons that should break almost instantly.

If you decide to ignore that, that I would at least encourage you to also go back and allow weapons and stuff from things like gold, so you're at least consistent either way.
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StagnantSoul

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Re: Non-metal, effective weaponry?
« Reply #35 on: September 09, 2014, 07:34:03 pm »

I wouldn't imagine using weak metals like gold for weapons. I've seen a gold ring get a dent from dropping it on a stone counter. Some mythical metals may be included.
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Re: Non-metal, effective weaponry?
« Reply #36 on: September 09, 2014, 10:04:22 pm »

Code: [Select]
[INORGANIC:DIAMOND_LY]
[USE_MATERIAL_TEMPLATE:STONE_TEMPLATE]
[TILE:15][IS_GEM:light yellow diamond:STP:OVERWRITE_SOLID][DISPLAY_COLOR:7:7:1][MATERIAL_VALUE:30]
[SPEC_HEAT:409]
[IGNITE_POINT:11440]
[MELTING_POINT:NONE]
[BOILING_POINT:16708]
[MOLAR_MASS:1201]
[IMPACT_YIELD:210000000]
[IMPACT_FRACTURE:420000000]
[IMPACT_STRAIN_AT_YIELD:47404]
[COMPRESSIVE_YIELD:210000000]
[COMPRESSIVE_FRACTURE:420000000]
[COMPRESSIVE_STRAIN_AT_YIELD:47404] bulk modulus 443 GPa
[TENSILE_YIELD:60000000]
[TENSILE_FRACTURE:120000000]
[TENSILE_STRAIN_AT_YIELD:4918] young's modulus 1220 GPa
[TORSION_YIELD:60000000]
[TORSION_FRACTURE:120000000]
[TORSION_STRAIN_AT_YIELD:4918]
[SHEAR_YIELD:60000000]
[SHEAR_FRACTURE:120000000]
[SHEAR_STRAIN_AT_YIELD:12552] shear modulus 478 GPa
[BENDING_YIELD:60000000]
[BENDING_FRACTURE:120000000]
[BENDING_STRAIN_AT_YIELD:12552]
[ENVIRONMENT_SPEC:KIMBERLITE:CLUSTER_SMALL:100]
[SOLID_DENSITY:3520]
[STATE_COLOR:ALL_SOLID:CREAM]

I decided to get Diamond's actual properties and, uh.

It's actually stronger than Adamantine by an order of magnitude. It said that the tensile strength was "60 GPa"; Adamantine is 5 GPa. What.

Adamantine also has 5000000/0 young's, bulk and shear modulus, though, so that's a bit different.

Your stress properties would be capped at 100000000 (i.e. 100,000,000 kPa or 100,000 MPa or 100 GPa).

Having an [IMPACT_STRAIN_AT_YIELD:47404] would put the material between cartilage and skin in DF's flexibility system. The number doesn't seem right. I haven't done the math though to figure out what the number should be.



To everyone: It is worth keeping in mind that DF doesn't use the material property numbers in a strictly realistic way, so it may be desirable to build the materials to achieve the desired end results.

Putnam

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Re: Non-metal, effective weaponry?
« Reply #37 on: September 10, 2014, 01:15:36 am »

Like I've said, none o' them numbers are right. It's all wonky. You can see all of the values I got there, I made sure to write the program so that not information is lost in the conversion.
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