Kontaktgrad
The Kontaktgrad, or contact grade, is a dimensionless quantity used in contact mechanics to describe the fraction of the nominal contact area between two mating surfaces that is actually in mechanical contact. It is defined as the ratio of the true contact area to the apparent contact area. A Kontaktgrad of one indicates perfect, full contact, while values below one indicate partial contact arising from surface roughness or deformation. In some engineering contexts the value can be slightly greater than one when load transmission is enhanced by interlocking asperities or compressive bonding.
The calculation of Kontaktgrad is typically performed by evaluating surface contact conditions through analytical models, finite‑element
Applications of Kontaktgrad span numerous fields. In automotive and aerospace engineering it underpins the design of
Because it directly relates to the mechanical integrity and longevity of machined or welded assemblies, Kontaktgrad