Kinetic Indentation Application to Determine Contact Characteristics of Sphere and Elastoplastic Half-Space

• DOI: 10.4028/www.scientific.net/amr.664.625
• Publication Date: 2013-03-11T17:10:54Z
• Authors: P.M. Ogar; V.A. Tarasov
• Keywords: Indentation; Exponent; Hardening (computing); Similitude

Kinetic indentation diagram has been used for the mathematical description of contact interaction between a sphere and elastoplastic half-space. The unloading curve exponent m determined. It shown that value is independent load distribution on surface, does depend ratio c 2 h/R (or h /R). Based deformation characteristics similitude, penetration determined areas constrained developed elastoplasticity. new parameter k (ε y ,n) introduced to account material hardening.