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porosity and volume strain, respectively. The damage factor is introduced into the basic rheological element, and the non-linear creep damage constitutive model and freeze-thaw rock equation... damage; creep damage model; damage factor; stable creep Cite this article as: LI Jie-lin, ZHU Long-yin, ZHOU Ke-ping, CHEN Hui, GAO Le, LIN Yun, SHEN Yan-jun. Non-linear creep damage model......
in this paper by introducing correction factor of damage variable, the model rationality is also verified by experiments. Analysis of results indicates that the damage evolution curve reflects the whole... the rock micro-element destruction has not been taken into account in Eq. (12), therefore, the damage variable correction factor (δ) is introduced in this paper to consider the residual strength. δ......
. In the present work, Gaussian weighting function was taken as the non-local method, by using damage power consumption rate to express the damage factor. The non-local damage model of the rock...; (5) where σ and ε are the stress and the strain, respectively; ω is the damage factor; De is linear elastic stiffness matrix. Eq.(5) indicates that the damage factor is equal......
the elastic module reduces in some sorts. The density of micro-crack and D maintain a certain dilute degree. So the rupture damage mode might not be the principal factor leading to the failure... varying from 0 to 1. The yield damage mode is regarded as the principal factor leading to the failure of the material. And or Dy represents the exerting degree of the regulating capacity......
J. Cent. South Univ. (2021) 28: 595-603 DOI: https://doi.org/10.1007/s11771-021-4624-y Comprehensive safety factor of roof in goaf underdeep high stress JIANG Li-chun(姜立春)1, 2, JIAO Hua-zhe(焦华喆)3... Germany, part of Springer Nature 2021 Abstract: The safety factor of roof under deep high stress is a quantitative index for evaluating roof stability. Based on the failure mode of surrounding rock......
J. Cent. South Univ. (2020) 27: 554-565 DOI: https://doi.org/10.1007/s11771-020-4316-z Freeze-thaw damage mechanism of elastic modulus of soil-rock mixtures at different confining pressures ZHOU... roadbed filler, soil-rock mixture is often in the environment of freeze-thaw cycles and different confining pressures. In order to study the freeze-thaw damage mechanism of elastic modulus of soil......
modulus, shear elastic modulus, work to heat conversion factor, melting temperature and initial temperature. The damage extent at the ASB center in the radial collapse experiment was assessed... A method for calculating damage evolution in adiabatic shear band of titanium alloy WANG Xue-bin(王学滨) College of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, China......
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mechanism is not clear. Based on the damage factor, the damage research of properties of soil-rock mixture after different times of freeze-thaw cycles is investigated. Firstly, the size-distributed... degree of elastic modulus is considered as a damage factor, and applied to macro damage analysis of soil-rock mixture. Finally, the mesoscopic simulation of the experiments is achieved by PFC3D......
Corrosion damage evolution and residual strength of corroded aluminum alloysYouhong Zhang1), Guozhi Lv2), Hui Wang2), Bomei Si2), and Yueliang Cheng3) 1) The Second Artillery Engineering College, Xi... performed. Scanning electron microscopy and optical microscope analyses on corrosion damage were carried out. The definition of surface corrosion damage ratio was provided to describe the extent......
