Results 11 to 20 of about 99,412 (322)

Creep failure characteristics and damage creep model of red layer soft rock based on Perzyna viscoplastic theory [PDF]

open access: yesScientific Reports
Rock creep is essentially a process of damage accumulation. According to the damage evolution of rock under creep conditions, the TAW2000 triaxial test system is used to carry out triaxial creep test on red layer soft rock taken from Yibo Tunnel in ...
Lei Chen   +6 more
doaj   +2 more sources

Creep characterisation and microstructural analysis of municipal solid waste incineration fly ash geopolymer backfill [PDF]

open access: yesScientific Reports
In this work, an alkali-activated municipal solid waste incineration (MSWI) fly ash-based filling material was prepared with MSWI fly ash as the raw material and slag as the auxiliary material. The filling body experiences long-term creep, which may have
Lijuan Su   +5 more
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

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

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

The Effect of Specimen Size and Test Procedure on the Creep Behavior of ME21 Magnesium Alloy

open access: yesCrystals, 2021
Lightweight constructions and materials offer the opportunity to reduce CO2 emissions in the transport sector. As components in vehicles are often exposed to higher temperatures above 40% of the melting temperature, there is a risk of creep.
Bettina Camin, Maximilian Gille
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

A Fractional Order Creep Damage Model for Microbially Improved Expansive Soils

open access: yesFrontiers in Earth Science, 2022
Microbial Induced Calcite Precipitation method was used to improve the expansive soils of Nanning, Guangxi. The nonlinear shear creep behavior of microbially improved expansive soil was studied by triaxial consolidation drainage shear test.
Tian Xuwen   +6 more
doaj   +1 more source

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