2011/02/10 by Ivan Argatov, I. Argatov, Argatov, I. +3
Medicine · Physics and Astronomy · #Knee injuries and reconstruction techniques #Osteoarthritis Treatment and Mechanisms #Total Knee Arthroplasty Outcomes #msc:74D #physics.bio-ph
paper · pdf · doi:10.48550/arxiv.1102.2054
7 pages, 1 figure
arxiv created 2011/02/10 · arxiv updated 2011/02/11
The rebound indentation test consisting of the displacement-controlled and load-controlled stages is considered for a frictionless cylindrical flat-ended indenter. The mechanical behavior of an articular cartilage layer sample is modeled in the framework of viscoelastic model with time-independent Poisson's ratio. Closed-form analytical expressions for the contact force (in the displacement controlled stage) and for the indentation displacement (in the load-controlled stage) are presented for an arbitrary viscoelastic solid model. The case of standard viscoelastic solid model is considered in detail. It has been established that the rebound displacement (that is the indentation displacement in the load-controlled stage) does not depend on the relaxed elastic modulus and Poisson's ratio as well as on the layer's thickness.