clever load normalization parameters for hip joint prosthesis

A normalising loading parameter useful in summarising the mechanical response of plane, pin in plate-like contacts is extended to axisymmetric, ball in socket-like contacts. Various diagrams reporting mechanically relevant dry frictionless contact parameters versus the loading parameter in compliant layered artificial hip joints and in metal-on-metal hip replacements are presented and assessed versus several literature results, Finally, the usefulness of the normalising loading parameter is expounded.