(13) What is the role of mechanical simulation in the project?

The purpose of mechanical wear simulation of orthopaedic implants is to replicate, as closely as possible, in-vivo wear. Destructively testing both materials and designs to get a more accurate picture of their performance envelopes and boundaries, which, in turn, helps to improve their longevity and performance.
Mechanical wear simulation is also a legal requirement for implants that are to be introduced into most markets, typically requiring a test of 5 million cycles following the respective ISO standard (hip – ISO14242-1 (2012); knee – ISO14243-1 (2009)) with a further 5 million cycles of ‘adverse’ wear testing now being advocated to identify potential areas of weakness or breakdown under extreme loading or ranges of motion.
Only through accurate mechanical wear simulation can weakness and performance deficiencies of materials and designs identified and ‘designed out’.

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