S. Sen et al., A FINITE-ELEMENT ANALYSIS OF THE INDENTATION OF AN ELASTIC-WORK HARDENING LAYERED HALF-SPACE BY AN ELASTIC, International journal of mechanical sciences, 40(12), 1998, pp. 1281-1293
An elastic-plastic contact problem in elastic-work hardening layered h
alf-space indented by an elastic sphere was solved numerically using t
he finite element method. The case of a surface layer stiffer than the
substrate is considered, and general solutions for the subsurface str
esses and deformation fields are presented for a relatively thin elast
ic layer. Differences between the elastic and elastic-plastic solution
s for the contact pressure distribution have been investigated for var
ious layer thicknesses. Crack initiation and decohesion of the layer w
as also discussed with reference to the growth of the plastic zone. (C
) 1998 Elsevier Science Ltd. All rights reserved.