Effect of the Porous Skeletal Iron Structure on the Infiltration of Aluminum Melts

Powder Metallurgy and Metal Ceramics - The infiltration of aluminum melts into porous metal skeletons produced by powder metallurgy methods, including 3D printing, under a pressure gradient was...     

Optimization of the Sintering Parameters for Materials Manufactured by Powder Injection Molding

Powder Metallurgy and Metal Ceramics - The properties of sintered and heat-treated steels produced from the Catamold 8740 material by powder injection molding were examined. Parts made of the...     

THERMOELASTIC ANALYSIS OF AN ORTHOTROPIC SEMI-INFINITE SLAB

The stationary thermoelastic problem for an orthotopic semi-infinite slab undergoing plane deformation is investigated. The top and bottom faces of the slab are presumed to be free of traction and subject to arbitrary symmetrical distributions of temperature, while the end of the slab is taken to be rigidly fixed and thermally insulated. By using Fourier transforms the heat conduction problem is solved and the corresponding stress problem is reduced to a singular-integral equation. Numerical results are presented for both the temperature and stresses along the fixed end of the slab caused by different prescribed surface temperature distributions.     

Plane Problem of a Crack on the Interface of Orthotropic Plates with Friction of Crack Lips

We consider a plane problem of a crack on the interface of different orthotropic arbitrarily oriented semiinfinite spaces subjected to the action of uniform tensile and shear forces applied at infinity. In the vicinity of the crack tip, the crack lips smoothly close up to form a contact zone of a priori unknown length in the presence of constant friction between the lips. A transcendental equation for the length of the contact zone is deduced and analyzed. As a result, we obtain the dependences of the relative length of the contact zone and the stress intensity factors on the orientation of the principal directions of orthotropy for different values of the external load and boundary friction.     

Modeling thermoelectric generators using the ANSYS software platform: Methodology,practical applications,and prospects

We present a review of modeling techniques of thermoelectric generators (TEGs) with the use of the finite element method based on the software of the ANSYS Workbench platform. Comparative analysis of different models and with the experiment is presented. The development direction of methods for studying the properties of promising TEGs, including generators based on MEMS technology, as well as segmented and coaxial types, is discussed. It has been shown that an important step in the design is to calculate the geometric parameters of the thermoelements (TEs) carried out with the help of numerical methods for solving the optimization problem by the criterion of maximizing the power output. The use of modeling techniques makes it possible to determine the activation modes of TEGs, operating temperature range, load resistance, and the output power.