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A Damage Constitutive Model of Rock under Hydrochemical Cyclic Invasion
Published 2020-01-01“…Based on the theory of microbody strength distribution, the constitutive equation for rock damage under the coupled effect of water chemistry and cyclic water invasion is established. …”
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22
Unsteady Electroosmotic Flow of Jeffrey Fluid in a Circular Microchannel under the Combined Action of Vertical Magnetic Field, External Electric Field, and Pressure at High Zeta Po...
Published 2022-01-01“…The numerical solutions of the potential and velocity distributions are obtained by solving the nonlinear Poisson-Boltzmann equation, the constitutive equation of the Jeffrey fluid, and the Cauchy momentum equation applying the Chebyshev spectral method and the finite difference method. …”
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23
The Establishment of Segmented Constitutive Relationship of Coal under Triaxial Compression: Take the No. 3 Coal of Xinhe Colliery as an Example
Published 2020-01-01“…Through fitting calculation of test data, the segmented constitutive equation of coal can be obtained, and the every segment span of strain.…”
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24
Modeling and Dynamical Behavior of Rotating Composite Shafts with SMA Wires
Published 2014-01-01“…A thermomechanical constitutive equation of SMA proposed by Brinson is employed and the recovery stress of the constrained SMA wires is derived. …”
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25
The Characteristic Transient Response of a Pressurized Cantilever Pipe Subjected to Transverse Impact at Its Tip
Published 2019-01-01“…Bending moment and axial force were uncoupled in the constitutive equation, and an experiment-based relationship between moment and curvature was adopted. …”
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26
A Rheological Model of Sandstones considering Response to Thermal Treatment
Published 2019-01-01“…The investigation allows successful establishment of a three-dimensional constitutive equation considering the instantaneous elastic response to thermal treatment. …”
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27
A Nonmonotonous Damage Model to Characterize Mullins and Residual Strain Effects of Rubber Strings Subjected to Transverse Vibrations
Published 2013-01-01“…This work focuses on the formulation of a constitutive equation to predict Mullins and residual strain effects of buna-N, silicone, and neoprene rubber strings subjected to small transverse vibrations. …”
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28
Constitutive Model of Rock Uniaxial Damage Based on Rock Strength Statistics
Published 2018-01-01“…Based on the statistical damage constitutive model proposed in this paper, a numerical fitting analysis was conducted on the uniaxial compression testing data of laboratory sand rock and on experimental data from other literature, in order to validate the rationality of the constitutive equation and the determination of its parameters and to analyze the effect of internal friction variables on damage variables and compression strength. …”
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29
Constitutive Model and Damage Evolution of Mudstone under the Action of Dry-Wet Cycles
Published 2018-01-01“…The decay rate and the damage variable are connected with each other and applied to the damage constitutive equation based on the energy principle to set up the damage evolution equation under the coupled action of dry-wet cycles and loads. …”
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30
Development of a New Inflatable Controlled Anchor System and Experimental Study of pull-out Capacity
Published 2019-01-01“…Through comparison with the experimental curves, the results of model calculation indicate that the proposed anchor-soil interface constitutive equation can describe the pull-out characteristics of the inflatable controlled anchor. …”
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31
Elastic-Viscoplastic Constitutive Model of Soil under Cyclic Loading
Published 2021-01-01“…The yield criterion for soil under cyclic loading with constant amplitude was proposed following the simplified load. A constitutive equation based on the EVPM was constructed by using the flow criterion related to the yield criterion. …”
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32
Evolution of Dynamic Recrystallization in 5CrNiMoV Steel during Hot Forming
Published 2020-01-01“…The constitutive behavior of 5CrNiMoV steel was analyzed to deduce the operative deformation mechanisms, and the correlation between flow stress, temperature, and strain rate was expressed as a sine hyperbolic type constitutive equation. Based on the study of characteristic stresses and strains on the true stress-strain curves, a DRX kinetics model was constructed to characterize the influence of true strain, temperature, and strain rate on DRX evolution, which revealed that higher temperatures and lower strain rates had a favorable influence on improving the DRX volume fraction at the same true strain. …”
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33
Failure Law and Mechanism of the Rock-Loose Coal Composite Specimen under Combined Loading Rate
Published 2018-01-01“…Finally, the deformation mechanism and constitutive equation of the rock-loose coal composite system are discussed.…”
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34
Hot Deformation Behavior and Workability Characteristic of SiCp/Al-Cu-Mg-Ag Composite
Published 2025-01-01“…The hot deformation behavior of the SiCp/Al-Cu-Mg-Ag composite was analyzed through stress-strain curves, and a constitutive equation for its hot deformation was established. …”
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35
Using the Rheological Index to Quantitatively Evaluate the Mechanical Performance of High-Elasticity Modified Asphalt
Published 2021-01-01“…The parameters were fitted with the Burgers model, and the constitutive equation was established. The 3 s elastic recovery rate Er was proposed to quantitatively evaluate the elastic recovery of high-elasticity modified asphalt. …”
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36
Horizontal Vibration of Pile in Transversely Isotropic Saturated Soil Based on Saturated Porous Medium Theory
Published 2023-01-01“…Based on Beor’s saturated porous medium theory and the constitutive equation of transversely isotropic media, the horizontal dynamic control equation of transversely isotropic saturated soil is obtained without considering the vertical displacement. …”
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37
Dynamic Response of a Casting Crane Rigid-Flexible Coupling System to High Temperature
Published 2020-01-01“…To determine the influence of temperature on the mechanical properties of crane metal structures, three Q355 alloy steel samples were processed and their elastic moduli were tested at different temperatures using a metal tension test bed. The constitutive equation for the elastic modulus of Q355 alloy steel at different temperatures was predicted using test data and a neural network algorithm. …”
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38
Loading-Rate Dependency of Young’s Modulus for Class I and Class II Rocks
Published 2021-01-01“…A variable-compliance constitutive equation was proposed for the loading-rate dependency of Young’s modulus, and the calculated results agreed well with measured values. …”
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39
Fractional Stress Relaxation Model of Rock Freeze-Thaw Damage
Published 2021-01-01“…The research shows that the test results are consistent with the calculated results, indicating that the constitutive equation can better describe the stress relaxation characteristics of rocks under freeze-thaw and provide theoretical basis for surrounding rock support in cold region.…”
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40
Elucidating the process mechanism in Mg-to-Al friction stir lap welding enhanced by ultrasonic vibration
Published 2025-01-01“…With such modified constitutive equation, the numerical simulation was conducted to compare the heat generation, temperature profiles and material flow behaviors in Mg/Al UVeFSLW/FSLW processes. …”
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