TOMSK, Mar 12 – RIA Tomsk. Research team of the Scientific Research Institute of Applied Mathematics and Mechanics of Tomsk State University (SRIAMM TSU) made a research to protect spacecraft against cosmic particles; they created methods and models to test spacecraft materials in extreme environment under maximum load conditions, reports the press service of the university.
It is specified that cosmic particles, including debris, pose a serious danger to spacecraft. Moving at a speed of more than 5 kilometers per second, even small particles (1-2 millimeters) are able to penetrate the main body or destroy the equipment of the spacecraft.
"Scientists (of the Scientific Research Institute of Applied Mathematics and Mechanics of Tomsk State University) developed numerical methods which allow to test protective structures (grids, screens) and materials (for spacecraft), varying the collision speed, obstacle load, etc. The models of deformation and fracture of materials allow to make numerical experiments that are much cheaper and faster than full-scale tests", – is said in the statement.
It is noted that the theoretical developments of the scientists of the Scientific Research Institute of Applied Mathematics and Mechanics of Tomsk State University (SRIAMM TSU) will become the basis for the creation of an automated engineering calculation system which allows to simulate an explosion, collision and other situations of high-intensity impact on materials and spacecraft designs. Scientists experimentally confirmed theoretical groundwork.
"A series of experiments was carried out with the use of a unique light-gas ballistic gun, which allows to accelerate particles to cosmic velocities. Installation ... can throw various drummers with a speeds of up to 8 kilometers per second. The accuracy of theoretical models and numerical calculations was confirmed during the experiment", – the press service quotes the project manager Sergey Pashkov.In particular, the experiment allowed to acquire data on the collision of micrometeoroids with glasses of the ISS windows and optical instruments. The information obtained as a result of the work of scientists of the SRIAMM TSU will help to create new light and durable materials and structures for the protection of spacecraft, is emphasized in the message of the university.