Experimental shear strength study of a composite material: a cylindrical titanium implant simulator with flanges and plastic

ABSTRACT A cylindrical titanium implant simulator with flanges and plastic, which is a composite material, was modelled in shear tests to imitate the behaviour of the connection between an implant and bone tissue. The shear strength of a composite material was estimated by the rule of mixtures, taking into account the strength of the titanium-plastic boundary. For a smooth flange surface, an increase in flange height from 0 to 1 mm increases the shear strength of a composite from 2.9 MPa to 56.4 MPa. And after abrasion treatment on the surface of the flange, it increases the shear strength to 73.9 MPa. The ratio of the experimental shear strength of the composite material to its calculated value at a flange height of 1 mm reaches 82% for smooth flanges and 95% for rough flanges.