Linked from
The 24 pages that link to Contact mechanics, each with the reason it gives.
AdhesionRelated: Real contact area can be much smaller than apparent area, limiting adhesive force.
Normal forceNarrower topic: Surface deformation at contact produces the normal force.
TribologyNarrower topic: It supplies the models for predicting real contact areas and pressures.
Granular materialRelated: Grain contacts transmit the forces that organize an assembly.
WearRelated: Contact pressures and their distribution help determine where wear damage accumulates.
Impact forceRelated: It describes how impact force is distributed across the colliding surfaces.
Constraint (mechanics)Related: Nonpenetration and friction conditions constrain contacting bodies.
Granular flowNarrower topic: Contact laws determine the forces that transmit stress through grains.