slipprocessen

Slipprocessen is a term used in Swedish, Norwegian, and Danish to describe processes involving slip, sliding, or movement at interfaces. It is not a single, universal process; its exact meaning varies by discipline. In science writing it often denotes the mechanism by which layers, grains, or surfaces move past one another under stress.

In materials science and solid mechanics, slip refers to plastic deformation produced by the glide of dislocations along crystallographic slip systems. The slip process begins when applied stress exceeds the material’s yield strength, enabling dislocations to move, multiply, and reorient grains, resulting in permanent shape change. Temperature, crystal structure, and impurities influence which slip systems are active.

In geology and geophysics, slip describes movement along faults within rocks. Fault slip occurs as tectonic stresses accumulate and rocks fracture; the slipping motion releases energy as earthquakes. Slip is characterized by magnitude (slip distance), rate, and the distribution of slip over the fault surface, with stick-slip behavior common in many faults.

In tribology and mechanical engineering, slip processes describe frictional sliding at interfaces between contacting bodies. They determine wear, heat generation, and energy dissipation. Lubrication, surface finish, and material pairing strongly influence slip behavior and its consequences for performance and durability.

Terminology varies by language and field; in English texts the corresponding terms may be "slip process," "sliding mechanism," or "slip along a fault," depending on context.