finite element analysis

The effectiveness of dental implants greatly relies on the attainment of osseointegration and the sustained stability of the implant in the long run.  An essential factor in achieving this success lies in comprehending the shift from primary to secondary stability and the consequences of microcracks that occur during the drilling of alveolar bone before implantation.  The objective of this study is to examine the stress interactions occurring in double-edge parallel cracks within heterogeneous (cortical-cancellous) bone under different loading conditions, particularly m

The purpose. Determination of radii ranges for cylindrical and convex (semi-spheroidal) parts of the solid oxide fuel cell (SOFC) semi-spheroidal shape anode based on stress and strain parameters calculated; comparison of 3D graphs of stress/strain distribution in anodes of proposed and spheroidal shapes; substantiation of the semi-spheroidal anode potential to withstand deformation and stress gradient under operational conditions.

Stress and strain distributions in the YSZ–NiO spheroidal shape anode-substrate for a solid oxide fuel cell (SOFC) under pressure of operating environment were calculated using the finite element analysis. The features were then compared with ones of the cylindrical shape anode. The radii ranges for the cylindrical and spheroidal (segments of a sphere) parts of the anode ensuring its improved deformation resistance and more uniform stress distribution were suggested.

A complete model of the induction shrink fit between a disk and shaft is presented. The model consists of a proposal of appropriate interference, checking the von Mises stress in the disk and shaft, mapping of the process of induction heating and determining the release revolutions. The methodology is illustrated by a typical example.