Open AccessEstimated delamination of an elastic-plastic liner in a high-pressure metal composite vessel
Author(s) -
Alexander Egorov
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1399/4/044057
Subject(s) - delamination (geology) , composite number , materials science , stress (linguistics) , composite material , structural engineering , shell (structure) , stress–strain curve , pressure vessel , constraint (computer aided design) , engineering , mechanical engineering , geology , deformation (meteorology) , paleontology , linguistics , philosophy , subduction , tectonics
To carry out delamination analysis in high-pressure metal composite vessels, a software approach is proposed in which the dynamic calculation algorithm is implemented in software systems. The algorithm is built on three points: the introduction of technological deviations (at the level of permissible defects), the determination of a three-dimensional stress-strain state, and a real-time solution. As a calculation program, LS-DYNA was selected in a dynamic formulation with the structure divided into 3D solid elements and unilateral constraint on the contact surface of the metal (liner) and composite shells was introduced. A geometrically and physically nonlinear problem is solved. The moment of liner delamination from the composite shell is determined by the change in the liner stress-strain state and by the liner deformable surface in time presented visually.