Results 1 to 10 of about 32,569 (261)

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

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

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

Triaxial creep test and model study of red sandstone based on Weibull distribution

open access: yesShuiwen dizhi gongcheng dizhi, 2023
At present, the creep problem of underground engineering surrounding rock still exists, and the creep theory needs to be further enriched. In essence, rock creep is a process of constant accumulation of damage.
Weize ZHANG   +3 more
doaj   +1 more source

Comparative Study of Creep and Stress Relaxation Behaviour during Ageing of 7050 Aluminum Alloy

open access: yesMetals, 2023
This work focuses on quantitatively investigating the relationship between creep and stress relaxation of 7050 aluminum alloy at ageing temperatures. The creep strain rates, creep exponent, n, and activation energy were extracted from both the creep and ...
Jing-Hua Zheng   +5 more
doaj   +1 more source

Brittle Creep and Viscoelastic Creep in Lower Palaeozoic Shales from the Baltic Basin, Poland

open access: yesEnergies, 2021
The paper analyses the mechanical properties of shales from the Baltic Basin, focusing on creep strain in conditions of variable stress and elevated temperature (85 °C). Rock samples were collected from drill cores from various depths between 3600–4000 m.
Przemyslaw Michal Wilczynski   +2 more
doaj   +1 more source

Description of Concrete Creep under Time-Varying Stress Using Parallel Creep Curve

open access: yesAdvances in Materials Science and Engineering, 2016
An incremental format of creep model was presented to take account of the development of concrete creep due to loading at different ages. The formulation was attained by introducing a horizontal parallel assumption of creep curves and combining it with ...
Yeong-Seong Park   +2 more
doaj   +1 more source

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