Open AccessFailure features of laminated materials under static and cyclic loading
Author(s) -
И. С. Каманцев,
A. V. Kuznetsov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/709/3/033107
Subject(s) - materials science , tension (geology) , delamination (geology) , composite material , ductility (earth science) , crack closure , stress (linguistics) , deformation (meteorology) , structural engineering , fracture mechanics , ultimate tensile strength , geology , engineering , paleontology , linguistics , creep , tectonics , philosophy , subduction
The paper discusses the behavior of a hot-rolled laminated metal material under cyclic loading according to the three-point bend and uniaxial static tension scheme. It is shown that the creation of a gradient structure provides increased resistance to the fatigue cracks growth while the propagation of a fatigue crack does not cause interlayer delamination, and the effect of retardation is realized until the crack tip reaches the interface of the layers. Under the conditions of static tension, the laminated material obtained by hot batch rolling has an increased ductility, and delamination along the interfaces occurs as a result of the formation of a neck and, as a result, a change in the stress state in the plastic deformation zone.