Ternopil Ivan Pul'uj National Technical University

About: Ternopil Ivan Pul'uj National Technical University is a based out in . It is known for research contribution in the topics: Deformation (engineering) & Fracture toughness. The organization has 134 authors who have published 187 publications receiving 1019 citations.

Physical and Chemical Aspects of Formation of Epoxy Composite Material with Microfilling Agent

Abstract: Formation of epoxy composite material with microfilling agent Al2O3 was investigated. Physical and chemical aspects of formation of external surface layers around disperse filler particles during structure formation of epoxy composites was proposed.

Verilog – ams model of comb-drive sensing element of integrated capacitive microaccelerometer for behavioral level of computer aid design

Abstract: The article presents Verilog – AMS model of the comb-drive sensing element of the integrated capacitive microaccelerometer. The suggested model allows to simulate the reaction of the sensing element effected by the applied force of acceleration, changes of its comb-drive capacities, output voltages and currents for determining its constructive parameters and for analysis of the mechanical module of the integrated device at the behavioral level of computer-aided design.

Computer analysis of digital images with quasiperiodical structure

Abstract: In this paper method of computer identification are proposed to identifying different type of multiple cracks on deformed nanocoating surface.

Controling the properties of bulk Hg1-xCdxTe by laser-induced shock waves

Abstract: The possibility of defect structure and consequently basic parameters (carrier density, their mobility and lifetimes) control in bulk mercury-cadmium telluride (MCT) using the nanosecond laser irradiation induced shock waves (LSW) is investigated. MCT bulk samples (with composition x equals 0.2) both n- and p- type with different initial structural quality were treated. The post-treatment changes have been detected by galvanomagnetic and photoelectric (lifetime) techniques. Two depending of irradiation mode mechanisms of interaction between LSW and bulk Hg1-XCdXTe defect subsystem are given. The potentiality of this technique as a technological tool for controlled modification of MCT parameters is discussed.

Micromechanisms of ferrite-pearlite steels fracture under cyclic and impact loading

Abstract: During operation, the railway axle is exposed to static, cyclic and dynamic loading that is accompanied by influence of corrosive environments. This causes the accumulation of structural and mechanical damages in the material, formation of corrosion and mechanical micro-defects that are potential sites of fatigue crack nucleation and growth. This requires the development of failure analysis methods that allow determining main mechanisms of ferrite-pearlite steels fracture on the micro scale level. The railway axle’s material – the OSL steel – main regularities of temperature influence on fracture mechanisms in ferrite-pearlite steel type are shown. Qualitative and quantitative analysis of fracture surface of Charpy specimens tested at 20°C and -40°C was performed on micro scale level using SEM investigation.