materialkoeffisienter
The term *Materialkoeffizienten* (German for "material coefficients") refers to specific numerical values that describe the physical and mechanical properties of a material. These coefficients are essential in engineering, physics, and materials science to characterize how a material behaves under various conditions such as stress, temperature, or electrical influence. They serve as quantitative parameters in mathematical models and simulations to predict material performance.
Common material coefficients include:
- **Young’s modulus (E)**, which measures stiffness and defines the relationship between stress and strain in a
- **Poisson’s ratio (ν)**, indicating the ratio of transverse strain to axial strain under uniaxial loading.
- **Thermal expansion coefficient (α)**, describing how a material’s dimensions change with temperature variations.
- **Thermal conductivity (λ)**, quantifying a material’s ability to conduct heat.
- **Density (ρ)**, representing mass per unit volume, crucial for dynamic and static load calculations.
- **Friction coefficients (μ)**, defining the resistance to sliding between surfaces in contact.
These coefficients are determined experimentally or derived from theoretical models and are material-specific. For example, metals
Standardized testing methods, such as ASTM or ISO guidelines, provide protocols for measuring these properties to