The problem of deformation of a two-layer cylindrical metal composite high pressure vessel during its manufacture and during its operation was considered. In order to estimate possibility of the metal liner buckling as a result of its delamination from the composite shell, calculations were performed in the LS-DYNA software package in dynamic formulation using 3D solid elements. Deformation model of the structure under study included technological deviations that were inherent in real products. According to the stress-strain state parameters obtained in real time, possibility of the liner delamination from the outer composite shell wound by carbon-filled plastic tape was established qualitatively and quantitatively. Numerical analysis of the liner central part behavior was performed in two design cases, i.e. when winding a composite tape on a metal liner with tension and when applying pressure to the liner and when defusing pressure at the vessel loading – unloading procedure. Effective calculation method was proposed to solve the problems of the metal liner buckling in a constrained rigid medium. Numerical values of the carbon-filled plastic tape tension force and of the internal pressure, which could cause aluminum liner delamination from the composite shell, were obtained.
Analysis of delamination in metal composite pressure vessels
XLIII ACADEMIC SPACE CONFERENCE: dedicated to the memory of academician S.P. Korolev and other outstanding Russian scientists – Pioneers of space exploration ; 2019 ; Moscow, Russia
AIP Conference Proceedings ; 2171 , 1
2019-11-15
5 pages
Conference paper
Electronic Resource
English