Flattening analysis of plastically graded cylindrical contact under plane stress condition

Abstract

The present work deals with finite element based flattening analysis of a functionally graded cylindrical contact against a rigid flat surface under plane stress condition. The yield strength of the semi-cylinder is varied radially according to an exponential function. The contact between the semi-cylinder and the rigid flat is considered to be perfect-slip type in nature. To reduce the computational time, a 2D quarter circle is used to model the cylinder and rigid flat surface is modelled using a straight line. The effect of the gradation parameter on contact behaviours e.g. contact area, contact force, contact pressure etc. of the semi-cylinder are presented and discussed.

Tangential elastic contact model of the cylindrical contact with different axis crossing angles

“…Based on Eqs. ( 12), (13), and (14), eccentricity e and contact model shape parameter R represent critical parameters. Different contact angles and contact model shapes affect the critical parameters.…”

“…The contact and bending stresses of curved cylindrical gears with and without tooth tip backlash are discussed by the FEM. Jana et al 13 studied the contact between a semi-cylinder and a rigid plane based on the finite element, introduced and discussed the contact area, contact force, and contact pressure of the semi-cylinder. Sugunesh et al 14 used Ansys to analyze the contact stress behavior of two cylinders, conducted an initial convergence study to obtain the best mesh and compared with theoretical values.…”