Measurement of Deformation of Grain Boundary in Ultra-high Molecular Weight Polyethylene (UHMWPE) Knee Component

Abstract

Recently, an explosive flaking-like destruction so-called delamination has been reported in retrieved study for ultra-high molecular weight polyethylene (UHMWPE) knee components. In order to investigate the effect of microscopic substructure on behavior of deformation of UHMWPE, tensile test was carried out under an optical microscope observation. Local strains around boundaries were measured and were calculated by image correlation method.