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Research on Creep Characteristics and the Model of Artificial Frozen Soil
Published 2022-01-01“…A series of triaxial creep tests for artificial frozen soil under different stresses and temperatures were carried out. …”
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Dynamic Performance of Concrete Considering Initial Stresses and Creep
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Study on the Nonlinear Damage Creep Model of the Weak Interlayer
Published 2022-01-01“…In this paper, based on the creep curve characteristics of weak interlayer and considering the influence of aging damage, the nonlinear improvement of a classical viscoplastic body under stress and time-double threshold conditions is carried out, so that it can more accurately reflect the accelerated creep characteristics of the weak interlayer. …”
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Influence of Concrete Creep on the Bending of a Prestressed Bridge Beam
Published 2023-07-01“…By present time significant experimental and theoretical material on concrete creep has been accumulated. At the same time, the known approaches to calculation of concrete and reinforced concrete structures with regard to creep are oriented mainly to solving problems with relatively simple geometry of the product. …”
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Study on Creep Characteristics and Constitutive Relation of Fractured Rock Mass
Published 2020-01-01“…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 creep laws of fractured coal samples with different dip angles were studied. …”
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New Maxwell Creep Model Based on Fractional and Elastic-Plastic Elements
Published 2020-01-01“…Furthermore, a sensitivity study was carried out, showing the effects of the fractional derivative order β and exponent α on the creep strain of rock salt. …”
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Investigation of Rock Failure Pattern in Creep by Digital Speckle Correlation Method
Published 2013-01-01“…Then, the steel-plate was pushed out quickly accompanying strong creep deformation.…”
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Features and Constitutive Model of Gypsum’s Uniaxial Creep Damage considering Acidization
Published 2020-01-01“…In this paper, the rock samples in the gypsum mining area were taken as the research object. Uniaxial compression creep tests were carried out under neutral water, pH=6 and pH=5 hydrochloric acid solutions, respectively. …”
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Experimental Investigations on Creep Behavior of Coal under Combined Compression and Shear Loading
Published 2021-01-01“…Numerous studies have been carried out on the creep properties of various rocks under pure compression conditions. …”
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Finite Element Analysis on the Creep Constitutive Equation of High Modulus Asphalt Concrete
Published 2015-01-01“…In order to obtain the viscoelastic constitutive relation of High Modulus Asphalt Concrete (HMAC), the constitutive relationship is used to carry on the various numerical calculation, utilize integral transforming in its Bailey-Norton creep rule, and establish new practical model. Combining with the collection data from creep tests of uniaxial compression, regression calculation is carried out with 1STOPT fitting software; thus the creep parameters of High Modulus Asphalt Concrete in different temperatures were obtained, which can be used in HMAC creep model.…”
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Creep Properties of Axially Compressed Fly Ash Concrete under Sulfate Corrosion
Published 2022-01-01“…The test factors include the load stress level, the concentration of sulfate solution, and the content of fly ash. Based on the creep mechanism of fly ash concrete under sulfate erosion, the relationship between time-dependent section area variation and creep was carried out. …”
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Experiment and Numerical Simulation on Creep Mechanical Behaviors of Mudstone under Unloading Condition
Published 2022-01-01“…To study the creep effect of surrounding rock of deep chamber under the condition of excavation and unloading, creep tests of deep mudstone over 1000 meters in unloading confining pressure were carried out in this work. …”
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Microstructural Features of Freezing and Thawing-Creep Damages for Concrete Mixed with Fly Ash
Published 2021-01-01“…The macroscopic morphology characteristics, pore structure characteristics, and microfracture morphology of concrete with fly ash subjected to the freeze-thaw-creep effect were analyzed via scanning electron microscopy (SEM). …”
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Nonlinear Creep Behavior and Viscoelastic-Plastic Constitutive Model of Rock-Concrete Composite Mass
Published 2020-01-01“…In order to study the creep mechanical properties of rock-concrete composite structures under long-duration load, the TFD-2000 microcomputer servo triaxial creep testing machine is used to carry out step loading creep tests on rock-concrete composite specimens (hereinafter referred to as composite specimens) under different confining pressures (including the confining pressures σ3 = 0 MPa). …”
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Modelling of Creep and Stress Relaxation Test of a Polypropylene Microfibre by Using Fraction-Exponential Kernel
Published 2016-01-01“…A tensile test until breakage and a creep and relaxation test on a polypropylene fibre are carried out and the resulting creep and stress relaxation curves are fit by a model adopting a fraction-exponential kernel in the viscoelastic operator. …”
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Experimental Study of the Creep Disturbance Effect and Acoustic Emission Characteristics of Mudstone with Different Moisture Contents
Published 2021-01-01“…It is of great significance to carry out creep disturbance experiments and to analyze the evolution of the internal cracks in specimens with different moisture contents to maintain the long-term stability of deep soft rocks.…”
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Miniaturized-specimen creep testing: an alternative for evaluating the remaining life of Cr-Mo steel components
Published 2024-09-01“…The results also emphasize the importance of carrying out creep test on miniaturized samples under vacuum, to avoid harmful effects due to the formation of the oxide layer.…”
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Study on the Creep Damage Characteristics of Shale under the Combined Action of Osmotic Pressure and Disturbance Load
Published 2021-01-01“…In the method of staged loading, the rock uniaxial compression perturbation creep test under static axial pressure, different perturbation frequencies, and different seepage water pressures was carried out, and the creep characteristics of shale under the combined action of perturbation and seepage were studied. …”
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The Creep Test Study and Macro-Detail Analysis of Argillaceous Red Sandstone in Different Water-Containing States
Published 2022-01-01“…In order to study the creep characteristics and failure mechanism of argillous red sandstone in a water-bearing state, uniaxial creep tests of argillous red sandstone under dry and saturated states are carried out under fractional loading. …”
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