Results 11 to 20 of about 17,423 (316)
Time-Dependent Creep Constitutive Model of Roadway Surrounding Rock Based on Creep Parameters
Geofluids, 2022 In order to better study the creep deformation characteristics of rock under different stresses, the generalized Burgers model was used as the basic model after analyzing the creep characteristics of rock and its relationship with stress and strain, and ...
Yukun Ma +4 more
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Study on Creep Characteristics and Constitutive Relation of Fractured Rock Mass
Shock and Vibration, 2020 In order to effectively describe the whole creep process of fractured rock mass, triaxial unloading creep tests were carried out on prefractured coal samples using constant axial pressure and graded unloading confining pressure, and the axial and lateral
Maotong Li +4 more
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Creep–Fatigue Life Estimation of Gr.91 Steel and Its Welded Joints
Metals, 2023 A series of creep–fatigue tests of Gr.91 steel were performed at 600 °C. Fatigue life was reduced by tensile strain holding. The minimum life reduction factor was approximately 0.3.
Isamu Nonaka
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A Fractional Order Creep Damage Model for Microbially Improved Expansive Soils
Frontiers 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
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Review of Creep Cavitation and Rupture of Low Cr Alloy and its Weldment [PDF]
, 2013 This paper presents a review of creep cavitation and rupture of low Cr alloy and its weldment, particular in the heat-affected zone (HAZ). Creep damage is one of the serious problems for the high temperature industry.
Xu, Qiang +6 more
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Time-dependentness of Creep Parameter Degradation and Variable Parameter Creep Model
工程科学与技术, 2021 In order to better study the creep properties of rocks under different conditions, the rock triaxial creep tests were conducted using the MTS812.02 test system. Based on the rock rheological mechanics, damage theory and the characteristic analysis of the
Wenbo LIU, Shuguang ZHANG, Boyi SUN
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Shuiwen dizhi gongcheng dizhi, 2023 The creep characteristics of rock are closely related to the long-term stability of rock mass. With the excavation of deep buried tunnels in west China, in order to ensure the safety of engineering and the long-term stability of underground buildings, it
Xiao HE +8 more
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Effect of Time and Stress on Creep Damage Characteristics of Cement-Based Materials
BuildingsIn the realm of daily life, ensuring the safety of building structures and civil engineering projects remains a paramount research focus. The creep properties of materials significantly influence their long-term loading process.
Yifan Zhang +5 more
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A Nonlinear Creep-damage Constitutive Model of Mudstone Based on the Fractional Calculus Theory [PDF]
Journal of Petroleum Science and Technology, 2017 During the flood development in an oil field, the creep characteristic of mudstone is one of the important factors causing casing damage. In this study, based on the theory of fractional order differential and taking into account the creep damage ...
Zhang Jun, Zeng Jia
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Pore structure evolution and damage creep model of shale subjected to freeze-thaw treatment
Journal of Materials Research and Technology, 2022 To solve the long-term instability problem of engineering project in the seasonal frozen region, we carried out the freeze-thaw (F-T) cycle experiments of shale under different F-T temperatures and numbers of cycles, nuclear magnetic resonance (NMR), and
Zhang-qing Xuan +5 more
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