Open AccessInfluence of the residual thickness of the interlayer on the stress-strain state in the nodes with soft interlayer
Author(s) -
Qi Li,
Ming Xiong,
Fengmei Liu,
Yu Xiong,
Yaoyong Yi
Publication year - 2019
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/677/2/022051
Subject(s) - materials science , residual stress , composite material , stiffness , rigidity (electromagnetism) , stress–strain curve , stress (linguistics) , structural engineering , finite element method , mechanics , deformation (meteorology) , engineering , physics , philosophy , linguistics
Ni3Al-based superalloys have excellent mechanical properties which have been widely used in civilian and military Fifield. In this study, the influence of the residual thickness of the interlayer on the stress-strain state in the nodes with soft interlayer was investigated by ccomputer simulation.To establish the general patterns of SSS formation when loading cylindrical nodes with interlayers of soft rigidity and checking the adequacy of the simulation, thickness of interlayer (0.01, 0.03, 0.05, 0.08mm) were calculated. The result shows that in all the thicknesses of the interlayer, both in the main material and in the interlayers, the nature of the distribution and the magnitude of the stiffness coefficients of the stressed state kstiff are practically identical. In the base metal, over most of the joint length, this coefficient is close to 1, decreasing to 0.88 in the nodes with “soft”. This corresponds to the general laws of mechanics and confirms the adequacy of the results of computer simulation.