Results 1 to 10 of about 101,379 (315)

Creep constitutive model of strain energy density considering the whole process of creep deformation. [PDF]

open access: yesPLoS ONE
Aiming at the problem that the traditional creep model is difficult to reflect the characteristics of accelerated creep stage of rock, the influence of stress state on accelerated creep is fully considered, and a constitutive model which can describe ...
Yuemei Li
doaj   +2 more sources

Nonlinear damage creep model of concrete considering the influence of temperature and its parameter variation law analysis. [PDF]

open access: yesPLoS ONE
In order to study the creep characteristics of concrete under different temperatures, the uniaxial creep test of concrete is carried out. On this basis, the nonlinear creep model of concrete is established by using the fractal order derivative theory ...
Lu Wang
doaj   +2 more sources

Insights of the asynchronous strain evolution of lean coal in uniaxial compression creep [PDF]

open access: yesScientific Reports
Owing to the heterogeneity, discontinuity and complex material structure, typical coal exhibits intricate deformation characteristics during long-term creep processes.
Tingting Cai   +6 more
doaj   +2 more sources

Creep model of roadway surrounding rock considering hardening effect and damage effect. [PDF]

open access: yesPLoS ONE
The influence of confining pressure on creep characteristics was analyzed by carrying out creep tests of rocks under different confining pressures. A new creep model of roadway surrounding rock considering the combined influence of hardening effect and ...
Hongmiao Lv
doaj   +2 more sources

Rubber Creep Model and Its Influence on Mounting Stiffness

open access: yesApplied Sciences, 2022
The mount of the engine will creep under the action of long-term load. Creep will change its original structure, resulting in changes in static and dynamic characteristics and fatigue life.
Jianghua Fu   +4 more
doaj   +1 more source

A nonlinear creep model for surrounding rocks of tunnels based on kinetic energy theorem

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
The initiating condition for the accelerated creep of rocks has caused difficulty in analyzing the whole creep process. Moreover, the existing Nishihara model has evident shortcomings in describing the accelerated creep characteristics of the ...
Wenbo Liu   +4 more
doaj   +1 more source

Determination of the parameters of rock viscoelastic creep model and analysis of parameter degradation

open access: yesScientific Reports, 2023
Different stress creep tests are conducted on the sandstone in this study to better describe the creep properties of rocks under different stress states. A model that describes the rock creep process is established.
Zhiming Zheng, Yu Yang, Cheng Pan
doaj   +1 more source

Understanding the creep behavior of shale via nano-DMA method

open access: yesEnergy Reports, 2021
Understanding the creep behavior of shale is essential to precisely predict borehole instability issues and model fracturing of unconventional shale reservoirs. In this study, the creep behavior of shale in micron scale is investigated by integrating the
Kouqi Liu   +4 more
doaj   +1 more source

Creep properties and resistivity-ultrasonic-AE responses of cemented gangue backfill column under high-stress area

open access: yesInternational Journal of Mining Science and Technology, 2021
To investigate the creep and instability properties of a cemented gangue backfill column under a high-stress area, the uniaxial compression creep tests were conducted by single-step and multi-step loading of prismatic samples made of cemented gangue ...
Hongyu Ran   +4 more
doaj   +1 more source

Thermal creep behavior of CZ cladding under biaxial stress state

open access: yesNuclear Engineering and Technology, 2020
Thermal creep is a key property of zircaloy cladding. CZ developed by CGN is a new zircaloy used as PWR fuel cladding. This research is devoted to investigating the thermal creep behavior of CZ and build the thermal creep model of CZ.
Jin Xin, Lin Yuyu, Zhang Libin
doaj   +1 more source

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