Stress analysis of glenoid component in design of reverse shoulder prosthesis using finite element method.

Background: This study aims to clarify the effect of various designs of reverse shoulder prosthesis (RSP) on stress variation of its glenoid component using 2-dimensional (2D) finite element analysis (FEA). This FEA study provides future reference for the optimal design of glenoid component of RSP.

Materials And Methods: In this study, a 2D finite element (FE) model of human shoulder with implementation of RSP was developed by commercial FE software.

Effects of anisotropic material property on the spring constant and the resonant frequency of atomic force microscope cantilever.

Atomic force microscope (AFM) is a powerful tool for force measurement in nanoscale. Many methods have been developed to obtain the precise cantilever's spring constant for improving the accuracy of force measurement. AFM cantilevers are usually made by single crystal silicon of which the anisotropic material property seriously affects the spring constant of cantilevers and has not considered before.

Influence of Poisson's ratio variation on lateral spring constant of atomic force microscopy cantilevers.

Atomic force microscopy (AFM) can be used to measure the surface morphologies and the mechanical properties of nanostructures. The force acting on the AFM cantilever can be obtained by multiplying the spring constant of AFM cantilever and the corresponding deformation. To improve the accuracy of force experiments, the spring constant of AFM cantilever must be calibrated carefully.

Accuracy of the spring constant of atomic force microscopy cantilevers by finite element method.

Atomic force microscopy (AFM) probe with different functions can be used to measure the bonding force between atoms or molecules. In order to have accurate results, AFM cantilevers must be calibrated precisely before use. The AFM cantilever's spring constant is usually provided by the manufacturer, and it is calculated from simple equations or some other calibration methods.