jäykkyyspoimu
Jäykkyyspoimu, a Finnish term, translates directly to "stiffness fold" or "rigidity fold" in English. It is a concept primarily used in the context of engineering and materials science, particularly when discussing the behavior of structures under load. The term refers to a localized region within a flexible or deformable material where the stiffness or resistance to bending significantly increases. This can occur due to the material's inherent properties, design features, or external factors.
In structural engineering, a jäykkyyspoimu might manifest as a thickened section of a beam, a gusset plate
The presence and location of a jäykkyyspoimu are crucial for analyzing the stress distribution and deformation