About iProperties and Materials
Each physical aspect has these physical properties.
Name | Definition | Symbol | Standard Metric Units |
Density | Mass per unit volume. | | g/cm^ 3 (grams/cubic centimeter) |
Young's Modulus | Indicates modulus of elasticity. Ratio of stress, σ (force/area) to strain, ε (± change in length / original length ); σ = Eε | E | Same as for pressure (force/area). gigaPascals (metric) = GPa. |
Poisson's Ratio | A measure of how much a material laterally contracts or expands as a sample of it is stretched or compressed, respectively. | ν | |
Yield Strength | The stress at which a given material begins to deform permanently. | Re (Υ, σ Y) | megaPascals (metric) = MPa (usually in this range for most engineering materials like steel and other metals) |
Ultimate Tensile Strength | The stress at which a material fails. | Rm (U, σ U) | megaPascals (metric) = MPa (usually in this range for most engineering materials like steel and other metals) |
Thermal Conductivity | The amount of heat energy transferred through a material per unit length and per one degree of temperature. | k | W/[m*K] (Watts / meter *°Kelvin) (Metric) |
Linear Expansion | Thermal expansion coefficient. A measure of how much a material expands as it is heated. | α | 10^-6/°K (± change in length / original length *°Kelvin) |
Specific heat | Heat capacity. A measure of how much heat energy a material can store (absorb) per unit of mass per unit of temperature. | C | J / [kg*K] (Joules / kilogram*K) |