TY JOUR TI MATHEMATICAL MODEL OF STIFFNESS PROPERTIES OF THIN-WALLED BARS OF CLOSED PROFILE OF THE SHIP STRUCTURES KW ship hull KW thin-walled spatial bar of closed profile KW stiffness matrix KW mathematical model KW finite element method JO Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies AU Panasenko, N.. AU Sinelshchikov, A.. PY 2016 IS PB Astrakhan State Technical University