In-vitro and in-silico investigations on the influence of contact pressure on cross-linked polyethylene wear in total knee replacements
作者： Sean T. O’Brien , Yunhua Luo , Jan-M. Brandt
DOI: 10.1016/J.WEAR.2015.02.048
关键词: Materials science 、 Finite element simulation 、 Polyethylene 、 Cross-linked polyethylene 、 Composite material 、 Forensic engineering 、 Total knee replacement 、 Knee simulator 、 Contact pressure
摘要: Abstract Various conflicting trends have previously been reported for the influence of contact pressure on polyethylene and crosslinked wear total knee replacements. In present study, in replacements was investigated using in-vitro simulator tests in-silico computational simulations. Knee were conducted under standardized increased loading. The test results predicted models with various – to evaluate accuracy each approach. revealed increase loading (1.7 fold) greatly (4.49 fold). simulations model trend linearly increasing result improved agreement over non-linear independent models. However, all under-predicted caused by load. suggest that may pin-on-disk not be directly applicable regard pressure.
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