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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

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

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

Long-term creep law and constitutive model of extremely soft coal rock subjected to single-stage load

open access: yesRock and Soil Mechanics, 2021
In order to study the long-term creep law of extremely soft coal rock, the uniaxial and triaxial creep tests of extremely soft coal rock subjected to single-stage loads were carried out by using the self-developed triaxial creep test system.
WANG Xing-kai   +5 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

Analysis of transient and tertiary creep behavior of Titanium modified 14Cr-15Ni stainless steel after cold working

open access: yesMaterials Research Express, 2020
Characteristic of transient and tertiary creep behavior of ten, twenty, thirty, and forty percent cold worked indigenously developed Titanium modified 14Cr-15Ni stainless steel at 700 °C and various stress levels have been assessed.
Hari Krishan Yadav   +3 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  

An elastic-viscoplastic creep model for describing creep behavior of layered rock

open access: yesFrontiers in Materials, 2023
To describe the full-stage creep behavior of layered rock accurately, a new elastic-viscoplastic creep model is proposed based on fractional order theory in this manuscript, which consists of a Hooke elastomer, a fractional Abel dashpot, a Kelvin body ...
Yukun Li   +3 more
doaj   +1 more source

A Comparative Study on Creep Behavior of Wood Flour-Polypropylene Composite, Medium Density Fiberboard (MDF) and Particleboard [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2009
The creep/recovery behavior of wood flour-polypropylene was compared with medium density fiberboard (MDF) and particleboard. For this purpose, wood flour-polypropylene composites (with and without compatibilizer)were manufactured by using a laboratory ...
J. Nikrai   +2 more
doaj   +1 more source

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