TY JOUR TI JUSTIFICATION OF USING MULTILAYER COMPOSITE MATERIALS IN SHIPBUILDING KW shipbuilding KW polymer composite materials KW fiberglass KW mechanical properties KW tensile test KW ultimate stress JO Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies AU Alsaid, M.. AU Salamekh, A.. PY 2019 IS PB Astrakhan State Technical University