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[Neonivek]

Well you should read your own articles since Adamantine has no "Plastic Deformation".

Which suggests it has no Elastic Deformation either. As well since it has a "Impact Strain at Yield" value of 0 means that it doesn't suffer stress-strain, further supporting that it cannot bend since it lacks a "Elastic deformation" field. It also, if you read the wiki has No elasticity (a value that changed terminology in the raws)

Since a super elastic material would have a very high "Impact Strain at yield" value. Adamantine however has 0.

It is a super fragile material.

[10ebbor10]

Also, considering it's used in weaponry and as armour, I would suppose it's not an elastic pudding.

[arleneangle]

What you talk about is so interesting.

[Neonivek]

What you talk about is so interesting.

It is hard to explain why a material with no elasticity (no ability to bend without deforming) and a fracture point equal to its deformation point (It would break instead of deforming) means that it is a material that breaks but never bends.

http://dwarffortresswiki.org/index.php/DF2012:Metal

Elasticity is the ability of an object to bend and return to its original shape.

[Escapism]

Well you should read your own articles since Adamantine has no "Plastic Deformation".

Which suggests it has no Elastic Deformation either. As well since it has a "Impact Strain at Yield" value of 0 means that it doesn't suffer stress, further supporting that it cannot bend since it lacks a "Elastic deformation" field.

Since a super elastic material would have a very high "Impact Strain at yield" value (admittingly Toady cheats for some of these values). Adamantine however has 0.

It is a super fragile material.

As well

Brittle materials such as concrete or carbon fiber do not have a yield point, and do not strain-harden. Therefore the ultimate strength and breaking strength are the same

or rather... Deformation and breaking are the same thing.

The STRAIN_AT_YIELD values are supposedly only used after it's yield point, in other words after plastic deformation. Intuitively, elastic deformation would happen before plastic. Even if it were to refer to how much it would bend (elastically), it would still make no sense as no elastic yield points are defined. In caps lock: PLASTIC DEFORMATION IS NOT THE SAME AS ELASTIC DEFORMATION.

As for adamantine not having an elastic yield point, no material in DF has. It is undefined.

Lastly, your last point: You are assuming that adamantine is fragile (baseless).

Also, considering it's used in weaponry and as armour, I would suppose it's not an elastic pudding.

A reasonable argument, but not one necessarily true. Toady is, by education, a mathematician.

[Neonivek]

You missed my earlier correction which instantly proves my point.

As for adamantine not having an elastic yield point, no material in DF has. It is undefined

Ohh no it does. They changed the term to to "Impact strain at yield".

"The STRAIN_AT_YIELD values are supposedly only used after it's yield point, in other words after plastic deformation"

Which gives us the Elastic curve as well. Which Adamantine doesn't have. It is a line.

[Escapism]

You missed my earlier correction which instantly proves my point.

As for adamantine not having an elastic yield point, no material in DF has. It is undefined

Ohh no it does. They changed the term to to "Impact strain at yield"

No. There is no elastic yield point. Why is that so hard to understand? I'm beginning to suspect you are just a rather subtle troll.

[Neonivek]

You missed my earlier correction which instantly proves my point.

As for adamantine not having an elastic yield point, no material in DF has. It is undefined

Ohh no it does. They changed the term to to "Impact strain at yield"

No. There is no elastic yield point. Why is that so hard to understand? I'm beginning to suspect you are just a rather subtle troll.

It doesn't bend because it doesn't Deform it just snaps (Yield = Fracture).

It has no Deformation curve (0 Impact Strain at yield) so it lacks the elasticity curve (indirrectly, since elasticity can be obtained from this value) because it has no elasticity.

Edit addition: Actually it has no Stress-Strain Curve because it lacks a "Impact Strain at yield".

The difference between a fragile and a non-fragile object is its ability to bend. Diamonds while hard are fragile.

This is of course ignoring real life physics using that value. I am trying hard not to bring real life into this since all I would have to say is that "Any material with the same yield and fracture value are brittle".

now we KNOW that this is Elasticity because other objects with the same fracture as Yield ALSO have the "Impact Strain at Yield" value. Such as shell. This means that they can harmlessly bend before they can break, however limitedly. Adamantine however has this value at 0.

[Escapism]

That depends on what the STRAIN_AT_YIELD value actually means. If it means what the wiki says, then you are wrong. Can you provide any sources that say it means what you say it means?

My point being that, assuming the wiki is right, it is not necessarily true that adamantine isn't elastic. Yield point is actually, in engineering, specifically defined as the point at which something start to deform plastically.

https://en.wikipedia.org/wiki/Yield_(engineering)

Edit for your edit:
The yield point is for plastic deformation. It says nothing about elasticity. Having yieldpoint=fracture point simply means that there will be no plastic deformation.

[MrCat]

Oh forums.

"Hey, what if bows were effected by material?"

"That's a good idea."

blah blah blah "Adamantine is fragile"

"Lolno you are dumb look at my links"

"Nou look at my logic."

"So about material effecting ranged wea-"

"ADAMANTINE IS BRITTLE"

"NO IT'S CLEARLY A RUBBER PUDDY THING. LIKE SILLY PUDDY"

Cue endless link war. On subject with the OP, I think the idea of different types of characters being suited to different ranged weapons neat. Lighter, agile people could shoot a storm of arrows/bolts while acvtively moving; while hulking brutes could fire extremely strons arrows that would blow through armour anf seriously wound an opponent. It would add quite a bit to adventure mode, and make sieges more interesting.

[AutomataKittay]

Man all you that whines about bluemetal not being flexable, haven't you heard of torsion springs? Ballistas uses them, at least the real historical ones, there're nothing stopping dwarves from using twisted pieces of steel or fiber or sinew to spring hardened bluemetal arms and for the string. It'd be like titanium in gun nowadays, not for the hard-wearing part, like the barrel, but for the frame to make it much lighter.

[Escapism]

Spoiler (click to show/hide)

Oh forums.

"Hey, what if bows were effected by material?"

"That's a good idea."

blah blah blah "Adamantine is fragile"

"Lolno you are dumb look at my links"

"Nou look at my logic."

"So about material effecting ranged wea-"

"ADAMANTINE IS BRITTLE"

"NO IT'S CLEARLY A RUBBER PUDDY THING. LIKE SILLY PUDDY"

Cue endless link war. On subject with the OP, I think the idea of different types of characters being suited to different ranged weapons neat. Lighter, agile people could shoot a storm of arrows/bolts while acvtively moving; while hulking brutes could fire extremely strons arrows that would blow through armour anf seriously wound an opponent. It would add quite a bit to adventure mode, and make sieges more interesting.

"PEPLE CAN'T ARGUE ON THE INTERNET BECOS I SAY SO"

Look, I can act stupid on the internet too!

[Blade Master Model 42]

Spoiler (click to show/hide)

Oh forums.

"Hey, what if bows were effected by material?"

"That's a good idea."

blah blah blah "Adamantine is fragile"

"Lolno you are dumb look at my links"

"Nou look at my logic."

"So about material effecting ranged wea-"

"ADAMANTINE IS BRITTLE"

"NO IT'S CLEARLY A RUBBER PUDDY THING. LIKE SILLY PUDDY"

Cue endless link war. On subject with the OP, I think the idea of different types of characters being suited to different ranged weapons neat. Lighter, agile people could shoot a storm of arrows/bolts while acvtively moving; while hulking brutes could fire extremely strons arrows that would blow through armour anf seriously wound an opponent. It would add quite a bit to adventure mode, and make sieges more interesting.

"PEPLE CAN'T ARGUE ON THE INTERNET BECOS I SAY SO"

Look, I can act stupid on the internet too!

Can we please be civil? Or at least on the topic of material effectiveness in bows?

[Escapism]

A very reasonable idea; indeed, exactly what I meant to say with my post (hypocrisy is a human right).

[Neonivek]

Man all you that whines about bluemetal not being flexable, haven't you heard of torsion springs?

It won't work it is perfectly inflexible. Adamantine as far as the raws express are perfectly inflexible

Also YES I did read what Escapism linked and several links within it. I also read the Wiki that explains that attributes and compared it to other materials.

Also the arguement between me and escapism wasn't whether or not Adamantine was fragile or not, we both agreed it was fragile, it was whether it is perfectly inflexible or if it was like some sort of rubber like substance (which Indeed there ARE fragile substances that stretch and bend easily)

Which I then went on to show which attribute in the game dirrectly corresponds to elasticity which the wiki calls "Elasticity".

Or at least on the topic of material effectiveness in bows?

It is kinda what we are doing.

Since my arguement leads into "Adamantine and metals are ineffective bow materials unless composit" and Escapism's arguement is "How do you know Adamantine is inflexible? All those stats are only for after it breaks" and it goes on.

As for "Material Effectiveness of bows" it really needs someone who knows bows.