middelradius

Middelradius is a Dutch term that translates to mean radius or middle radius. In technical contexts it is used as a practical label for a representative radius of a curved feature when a single precise radius is not defined or when a value is needed for calculations.

Because middelradius is not a single standardized quantity, its exact meaning depends on the domain and application. In geometry and mechanical design involving annular or curved cross-sections, it is often taken as the arithmetic mean of the inner and outer radii: r_mid = (r_in + r_out) / 2. In pipe bending, tubing, and sheet-metal work, the term frequently refers to the centerline radius (CLR), the radius measured at the mid-thickness of the material, which is a common specification for bend quality and material stress.

Other interpretations may appear in modeling and analysis, such as using a circle with the same cross-sectional area as the target shape, or using a single radius to approximate a more complex boundary. The precise definition should be taken from the relevant standard, manufacturer specification, or domain-specific documentation.

See also: mean radius, centerline radius, radius of curvature, annulus, bend radius. References to ergenspecific standards or texts are advisable when exact definition is required for a given project.