This paper presents the modelling and analysis of the noise radiation due to internal acoustic excitation of a cylinder submerged in a heavy fluid. The cylinder consists of a cylindrical shell filled with air and attached to rigid end plates. The acoustic excitation is modelled as monopoles to simulate the operation of a machine noise source in the cylindrical shell. In order to model the noise...

Finite element analysis is the most used methodology to predict the mechanical behavior of a large spectrum of materials. It covers many research areas. In the case of metal matrix composites the reinforcing particles are being approximately represented by general regular geometries; i.e. spherical, rectangular, cylindrical and pyramidal shapes. Their distribution is generally arbitrary or appr...

a plain strain analysis of frictional rolling contact on an elastic graded coating is presented in this paper. finite element method is applied to gain an understanding of the stresses and contact zone properties caused during rolling contact. the effects of friction, material stiffness ratio and coating thickness on stresses in contact zone and coating/substrate interface are studied. shear mo...

Torsion of cylindrical shafts has been a topic in the classical theory of elasticity for a long time (Timoshenko and Goodier, 1970). The stiffness of a cylindrical shaft under torsional loading is often of interest in the study of torsion problems. Therefore, the uniform (St. Venant) and non-uniform torsion problem of structural components has long been the subject of theoretical and practical ...

background: as various implant geometries present different biomechanical behaviors, the purpose of this work was to study stress distribution around tapered and cylindrical threaded implant geometries using three-dimensional finite element stress analysis.     methods: seven implant models were constructed using the cad system. after digitized models of mandibular section, the crowns were crea...