Open AccessThe numerical calculation of statically admissible slip-line field for plane strain compression of a three-layer symmetric strip between rigid plates
Author(s) -
Thanh Nguyen,
Kien Trung Nguyen,
Sergei Alexandrov
Publication year - 2021
Publication title -
vietnam journal of science and technology/science and technology
Language(s) - English
Resource type - Journals
eISSN - 2815-5874
pISSN - 2525-2518
DOI - 10.15625/2525-2518/59/1/15261
Subject(s) - slip (aerodynamics) , slip line field , stress field , plane stress , boundary value problem , materials science , geometry , shear stress , stress (linguistics) , field (mathematics) , mechanics , shear (geology) , mathematics , structural engineering , mathematical analysis , composite material , physics , finite element method , engineering , linguistics , philosophy , pure mathematics , thermodynamics
This paper present a method to build up statically admissible slip-line field (the field of characteristics) and, as a result, the field of statically admissible stresses of the compression of a three-layer symmetric strip consisting of two different rigid perfectly plastic materials between rough, parallel, rigid plates (for the case: the shear yield stress of the inner layer is greater than that of the outer layer). Under the conditions of sticking regime at bi-material interfaces and sliding occurs at rigid surfaces with maximum friction, the appropriate singularities on the boundary between the two materials have been assumed, then a standard numerical slip-line technique is supplemented with iterative procedure to calculate characteristic and stress fields that satisfy simultaneously the stress boundary conditions as well as the regime of sticking on the bi-material interfaces