2023/10/23 by Popov, Valentin L., Li, Qiang, Willert, Emanuel
#500 Naturwissenschaften und Mathematik::530 Physik::530 Physik #MDR #extremal principle #functional elastic grading #generalized method of dimensionality reduction #non-axisymmetric indenter #normal contact
paper · doi:10.14279/depositonce-19151
In two recent papers, approximate solutions for compact non-axisymmetric contact problems of homogeneous and power-law graded elastic bodies have been suggested, which provide explicit analytical relations for the force–approach relation, the size and the shape of the contact area, as well as for the pressure distribution therein. These solutions were derived for profiles, which only slightly deviate from the axisymmetric shape. In the present paper, they undergo an extensive testing and validation by comparison of solutions with a great variety of profile shapes with numerical solutions obtained by the fast Fourier transform (FFT)-assisted boundary element method (BEM). Examples are given with quite significant deviations from axial symmetry and show surprisingly good agreement with numerical solutions.