Numerical-Experimental Determination of Stress and Deformation State in Connecting Lugs with the Effect of Contact Area Size

Abstract

The present paper describes numerical and experimental methodology for the analysis of stress and deformation state in structural elements with geometrical discontinuities. The research is based on structural elements of the connecting lug type. The stress and deformation state was determined as the contact area size between the axle and the connecting lug was changing. Numerical analysis was conducted by applying the finite element method in a ''KOMIPS'' software package. Experiments were performed at the Laboratory for stress and deformation measurements, Faculty of Mechanical Engineering, University of Belgrade, using ''GOM'' equipment and ''ARAMIS'' software application (DIC). This paper demonstrates how it is possible to anticipate the results by applying FEM. A short review of current research in the field of structural elements with geometrical discontinuities is given within the framework of the paper.

Towards an analytical model of a pin-lug connection

“…( 11), at least in an approximate fashion. The correlation between the load P and the contact angle ϑ is rarely addressed in the pertinent literature, see Durdevic et al (2019).…”

Investigation of Contact Stresses in the Eccentric Rolling Transmission

“…: in bearings [20,21] and in gears characterized by complex geometry, such as cycloidal drives [22,23]. In the case of such transmissions, it is also necessary to take into account the research, which presents the results of simulations of stress and deformation in structural elements with geometrical discontinuities [24] and show the influence of residual stresses on wear in the case of line rolling contact [25].…”