venymäkäyriä
Venymäkäyriä, or strain curves, are graphical representations used in engineering and materials science to illustrate the relationship between stress and strain in a material subjected to tensile or compressive forces. These curves are fundamental for understanding a material's mechanical properties, such as its elasticity, plasticity, and ultimate strength.
The horizontal axis of a venymäkäyrä typically represents strain, which is the deformation of the material
A typical venymäkäyrä for a ductile material begins in the elastic region, where stress is directly proportional