Attraction of the leading scientists to Russian institutions of higher learning, research organizations of the governmental academies of sciences, and governmental research centers of the Russian Federation

Laboratory of composite and ceramic materials

About Laboratory

Grant Agreement No.: 14.Z50.31.0036

Project name: Establishment of the scientific laboratory of composite and ceramic materials for Arctic vehicles (LCCM)

Name of the institution of higher learning: Nizhny Novgorod State Technical University named after R.E. Alekseev

Fields of scientific research: Mechanics and engineering

Project goal:

The project is aimed at creating and studying of composite materials and ceramics to be used in Arctic conditions, at low temperatures, aggressive seawater environment and large mechanical loads.

Objectives:

-Estimation of microstresses and microcracking under thermal loading of polycrystalline ceramics. -Development of methods of optimal design of composite structural elements used in the extremal Arctic conditions -Examination of the possibility of replacement of traditional construction materials by composite materials, with the account of stress levels and conditions of usage of the machinery (interval of temperature, landscape). - Building a climate camera for testing that cover a broad specter of exploitation regimes for Arctic vehicles used in challenging climate conditions (temperatures -60/+60, humidity up to 90%).

-Determination of the optimal parameters of microstructure of the composite and ceramic materials (volume fraction of fillers and reinforcing elements and their orientation distribution) used in the extremal Arctic conditions, for the given combination of the mechanical and thermal properties: 1) strength and stiffness, 2) thermal barrier and thermal strength requirements, 3)minimal absorption of water and reliability in the Arctic conditions, 4) low specific weight. - Development of the methodology of monitoring of degradation of the mechanical properties, by monitoring changes in electric conductivity. - Stress analysis of composite structural elements made of composite and ceramic materials. - Estimation of improvement of exploitation characteristics (with the account of accident situations) of vehicles, accounting for the characteristics of composites - Formulation of hypotheses for accelerated climate testing and their experimental validation in a camera.

-Analysis of evolution of microstructure of the composite and ceramic materials used in the Arctic conditions, and of their effective elastic and conductive properties. - Analysis of behavior of ceramics and composites under loads close to the critical ones. - Experimental determination of physico-mechanical properties of consided materials in wide temperature interval. - Development of technical specifications and construction documents for the machine elements made of composite and ceramic materials that are necessary for transfer to outside organizations that will produce the composite and ceramic materials. - Estimate and optimization of the longtime-strength characteristics under the conditions of cyclic mechanical and thermal loading. - Experimental determination of physico-mechanical properties of consided materials in wide temperature interval.   - Testing vehicles in field conditions - Conclusion, on the possibilities of using composite materials in Arctic vehicles.

Leading scientist

facultyKachanov 

Kachanov Mark Lazarevich

 

Date of Birth: 06.08.1946

Citzenship: USA

Academic degree and title: PhD

Job Title: Tufts University

Field of scientific interests:

Mechanics of heterogeneous materials; Multiple cracking and damage.

Rough contacts: Mechanics and conductance.

Geophysics and rock mechanics; Applications to oil exploration.

Industrial Applications :

- Thermal barrier coatings

- Porous ceramics (fracture under compression, thermal loading)

- Oil exploration (multiple fractures, anisotropy, rough surfaces)

- Nano-indentation of piezoelectrics

Academic recognition:

Professor Kachanov joined Tufts in 1982 as an Associate Professor after an appointment as an Assistant Professor at Rutgers University. He became a Full Professor at Tufts University in 1988. He is an Editor-in-Chief of the "International Journal of Engineering Sciences" and of "Letters in Fracture and Micromechanics". His Science Citation Index is 3600.

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