Egorov D.A. Obninsk Institute of Nuclear Power Engineering, National Research Nuclear University «MEPhI»Optimization of the Welding Process Equipment and Piping Plant by Modeling of Welded Joints 7/14/2012 2012 - #02 Nuclear power plants Trofimov A.I. Minin S.I. Trofimov M.A. Egorov D.A.