II International Conference "Composite Materials and Structures" at Moscow Aviation Institute
On November 16, 2021, the II International Online Conference "Composite Materials and Constructions" was conducted at Moscow Aviation Institute. The conference was organized by Moscow Aviation Institute and it brought together Russian and foreign scientists, experts, and industry representatives. It became one of the events of the 20th International Conference "Aviation and Cosmonautics".
The plenary session opened the conference. Mikhail Pogosyan, the rector of Moscow Aviation Institute, Academician of the Russian Academy of Sciences, Brian Falzon, Director of the Center for Space Industry at Royal Melbourne Institute of Technology (RMIT), Sergey Kulakov, Head of Virtual and Field Testing at Siemens Digital Industries Software, Andrey Akkuratov, Consultant for industrial solutions at Dassault Systems, took part in it.
Mikhail Pogosyan presented the report titled “Increasing the efficiency of aviation composite structures” at the plenary session.
– The implementation of composite material technologies requires new approaches to solving complex problems. Today, rather conservative approaches are used to determine the base values of the characteristics of materials, additional coefficients that take into account the deterioration of the properties of materials under the influence of various factors. All this significantly reduces the effect that we can get from the use of new structures containing composite materials, – said Mikhail Pogosyan. – From my point of view, the strategic way to solve these problems is to confirm the test results with a large amount of research. Modern technologies make it possible to take a qualitatively new step in the analysis and implementation of composite structures in the aviation industry. The development of computational methods is one of the key factors in increasing the efficiency of using such structures.
In his report, the rector of Moscow Aviation Institute emphasized that the current capabilities of computational methods make it possible to significantly advance in terms of predicting the behavior of structures made of composite materials and to solve the entire range of problems at different stages of design.
Research in the field of composite materials is one of MAI priority directions. Under the direct supervision of Mikhail Pogosyan, the "Composite materials and structural strength" laboratory was opened at Moscow Aviation Institute, and the center of competence in the area of integrated design and certification of composite structures is being created.
– The results of our work on the design of high aspect ratio wings indicate that via use of interdisciplinary approaches, we can achieve decrease in the maximum loads in the wing structure by 7-10%. This is the result of the use of calculation methods and the solution of a complex problem that takes into account aerodynamics, elastic characteristics, structural strength and other factors, – emphasized the rector of MAI.
Brian Falzon's speech was dedicated to the equally important topic. The expert spoke about the strategy of multilevel modeling of samples and structures made of polymer composite materials (PCM) under impact and damage, as well as the problems arising at different levels of modeling, namely the micro-, meso- and macrolevels. This approach saves time and design power during modeling and allows to calculate, for example, the resistance to operational damage to the wing and fuselage of a passenger aircraft.
The plenary session also touched upon such topics as the solution of dynamic strength problems in the Abaqus environment and a multilevel computational and experimental approach in the development of aircraft structures made of PCM according to the given characteristics of strength and fatigue life.
In the main part of the conference, sessions were held in three sections: "Methods for design, calculation and optimization of structures made of PCM", "Advanced technologies for processing PCM for the manufacture of structures based on them", "Polymer composite materials for aircraft construction, construction and energy, research and test methods PKM".
The conference brought together more than 100 people from 60 organizations at MAI site and online, allowing experts from different countries to exchange experience and the results of advanced research in the field of composite materials and PCM structures.