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Difference between revisions of "Strain at yield"
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{{Material properties}} | {{Material properties}} | ||
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| − | '' | + | '''Strain at yield''' is a [[Material science|property]] of [[material]]s. As with [[Material science#Mechanical Performance Properties|yield and fracture]], there are six types of strain at yield, one for each of the six forces: impact, compressive, tensile, torsion, shear, and bending. Although in real life it represents the level of strain when forced by one of the forces, it is simplified greatly. Only impact strain at yield has been verified to have an effect. |
| − | + | A higher number means more strain (more flexible). A lower number means less strain (more rigid). | |
| − | + | ==Elastic Modulus== | |
| − | + | The formula used in the raws to calculate strain at yield from a real-world [https://en.wikipedia.org/wiki/Elastic_modulus elastic modulus] value is the raw yield strength (in MPa/raw units) divided by 10 times the elastic modulus (in GPa). | |
| − | {| | + | Young's modulus is used for tensile and bending elasticity, the shear modulus is used for shear and torsion elasticity, and the bulk modulus is used for impact and compressive elasticity. |
| + | |||
| + | ==Strain at yield of materials== | ||
| + | |||
| + | Strain at yield of materials is defined by the following tokens: | ||
| + | |||
| + | * [IMPACT_STRAIN_AT_YIELD] | ||
| + | * [COMPRESSIVE_STRAIN_AT_YIELD] | ||
| + | * [TENSILE_STRAIN_AT_YIELD] | ||
| + | * [TORSION_STRAIN_AT_YIELD] | ||
| + | * [SHEAR_STRAIN_AT_YIELD] | ||
| + | * [BENDING_STRAIN_AT_YIELD] | ||
| + | |||
| + | As stated above, only [IMPACT_STRAIN_AT_YIELD] has been observed to affect the material. Lower strain at yield materials will shatter when hit by an impact, even if the impact is an edge weapon. | ||
| + | |||
| + | {| class="wikitable" | ||
| + | ! Material | ||
| + | ! Strain at yield | ||
| + | |- | ||
|[[Stone]], [[Bone]], [[Tooth]], [[Horn]], [[Hoof]], [[Pearl]], [[Shell]], [[Soap]], [[Tallow]], [[Chitin]], Most frozen liquids | |[[Stone]], [[Bone]], [[Tooth]], [[Horn]], [[Hoof]], [[Pearl]], [[Shell]], [[Soap]], [[Tallow]], [[Chitin]], Most frozen liquids | ||
|100 | |100 | ||
Latest revision as of 06:12, 30 June 2024
v50.14 · v0.47.05 This article is about the current version of DF.Note that some content may still need to be updated. |
| Material properties |
| Defined: Value • Color • Density • Strain at yield • Temperature values |
| Derived: Magma safety • Fire safety |
| Fluids: Depth • Flow • Pressure |
Strain at yield is a property of materials. As with yield and fracture, there are six types of strain at yield, one for each of the six forces: impact, compressive, tensile, torsion, shear, and bending. Although in real life it represents the level of strain when forced by one of the forces, it is simplified greatly. Only impact strain at yield has been verified to have an effect.
A higher number means more strain (more flexible). A lower number means less strain (more rigid).
Elastic Modulus[edit]
The formula used in the raws to calculate strain at yield from a real-world elastic modulus value is the raw yield strength (in MPa/raw units) divided by 10 times the elastic modulus (in GPa).
Young's modulus is used for tensile and bending elasticity, the shear modulus is used for shear and torsion elasticity, and the bulk modulus is used for impact and compressive elasticity.
Strain at yield of materials[edit]
Strain at yield of materials is defined by the following tokens:
- [IMPACT_STRAIN_AT_YIELD]
- [COMPRESSIVE_STRAIN_AT_YIELD]
- [TENSILE_STRAIN_AT_YIELD]
- [TORSION_STRAIN_AT_YIELD]
- [SHEAR_STRAIN_AT_YIELD]
- [BENDING_STRAIN_AT_YIELD]
As stated above, only [IMPACT_STRAIN_AT_YIELD] has been observed to affect the material. Lower strain at yield materials will shatter when hit by an impact, even if the impact is an edge weapon.
| Material | Strain at yield |
|---|---|
| Stone, Bone, Tooth, Horn, Hoof, Pearl, Shell, Soap, Tallow, Chitin, Most frozen liquids | 100 |
| Metal template, Wood template, Plant template, Seed template, most powders | 1000 |
| Nail | 5000 |
| Cartilage | 25000 |
| Skin, Fat, Muscle, Sinew, Nerve, Organ template, Leather, Cheese, Leaf | 50000 |
| Hair, Feather, Scale, Silk, Thread | 100000 |