Results 11 to 20 of about 4,092 (259)

Experimental Study of the Creep Disturbance Effect and Acoustic Emission Characteristics of Mudstone with Different Moisture Contents

open access: yesShock and Vibration, 2021
It is important to have a clear understanding of the creep characteristics of water-rich soft rocks under a dynamic load and the evolution of cracks because soft rock roadways in deep mines are very sensitive to disturbances, and instability and damage ...
Yongjiang Yu   +3 more
doaj   +1 more source

Improved creep resistance of 20Cr25NiNb heat resistant steels through grain boundary intermetallic precipitation strengthening

open access: yesJournal of Materials Research and Technology, 2023
The creep performance of 20Cr25NiNb austenitic steel through the addition of W, Mo, and B elements was investigated. W and Mo enhanced high temperature creep resistance primarily through solid solution strengthening σss and precipitation strengthening σp
Ming Shu   +7 more
doaj   +1 more source

Long‐term strength determination and nonlinear creep damage constitutive model of salt rock based on multistage creep test: Implications for underground natural gas storage in salt cavern

open access: yesEnergy Science & Engineering, 2020
Long‐term mechanical property is critical for underground energy storage in a salt cavern. Multistage loading has been widely used in creep tests to save test time and cost.
Fei Wu   +5 more
doaj   +1 more source

Accelerated creep model for rock based on statistical damage principle

open access: yesYantu gongcheng xuebao, 2020
Aiming at the problems that the existing creep theoretical models cannot describe the accelerated creep characteristics of the viscoplastic phase of rock and how to determine the start conditions of its accelerated creep phase, the triaxial creep tests ...
LIU Wen-bo 1, 3, ZHANG Shu-guang 1, 2, CHEN Lei 3, SUN Bo-yi 3, LU Ping-ping 3
doaj   +1 more source

Shear creep mechanical properties and damage model of mudstone in open-pit coal mine

open access: yesScientific Reports, 2022
Clarifying the shear creep characteristics of rock and scientifically analyzing its creep deformation law is the key to solving the problem of safe construction and long-term stability analysis of the open-pit coal slope rock mass. Shear creep tests were
Guanghe Li   +7 more
doaj   +1 more source

Accelerated Creep Life Assessment of In-Service Power Plant Components [PDF]

open access: yesMATEC Web of Conferences, 2019
Structural metals used in plant components are subject to aging from a combination of fatigue, creep, and corrosion. Exposure to elevated temperatures promotes creep.
Aldajah Saud Hamad   +2 more
doaj   +1 more source

Coupling Characteristics of Creep Fracture of Rock Foundation on Wind Turbine under Wind-Induced Vibration

open access: yesEnergies, 2022
In view of the nonlinear mechanical characteristics of rock foundation creep fracture and its influence on the stability of wind turbine under wind load, based on the influence of wind load, this paper proposed the elastoplastic creep fracture and rock ...
Jun Wang, Zhipeng Nie, Ping Cao
doaj   +1 more source

Assessment of creep behavior using a damage-coupled model for martensitic stainless steel

open access: yesMechanical Engineering Journal, 2021
In this study, the Liu–Murakami (LM) creep damage-coupled model was considered to evaluate the creep properties of martensitic stainless steel. The degree of creep damage was examined at two temperatures (565 ℃ and 593 ℃) to assess mechanically and ...
Sungmin YOON   +5 more
doaj   +1 more source

Accelerated Stage Creep and Creep Rupture under Temperature Cycling

open access: yesBulletin of JSME, 1961
In the present paper, the influence of temperature cycling on the accelerated stage creep and the rupture life is discussed by employing AISI 318 type stainless steel. In this discussion, the strength of material under temperature cycling was compared with that under steady temperature by introducing the idea of the equivalent steady temperature for ...
TAIRA, Shuji, OHNAMI, Masateru
openaire   +3 more sources

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

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