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Relaxation of Viscoelastic Properties of Sandstones: Hysteresis and Anisotropy
Elastic nonlinearity in sandstones is given by the combination of slow and fast effects, leading to hysteresis and relaxation of the viscoelastic...
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Non-harmonic resonance of viscoelastic structures subjected to time-dependent exponentially decreasing transverse distributed loads
In this paper, the non-harmonic resonance of Bernoulli viscoelastic beams, Kirchhoff viscoelastic plates, Timoshenko viscoelastic beams, and Mindlin...
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Viscoelastic–plastic stability analysis of large-section quasi-rectangular pipe-jacking tunnel under-passing box culvert
With the widespread application of large-section quasi-rectangular pipe-jacking tunnels in urban road traffic engineering in China, higher...
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Implementation of Viscoelastic Artificial Boundary and Seismic Motion Input Method in Three-Dimensional Discontinuous Deformation Analysis Method
When applying the three-dimensional discontinuous deformation analysis (3D-DDA) method to simulate the dynamic response of rock mass in an...
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A generalized time-domain velocity-stress seismic wave equation for composite viscoelastic media with a topographic relief and an irregular seabed
Accurate seismic wave modeling of viscoelastic anisotropic medium is a fundamental tool for seismic data processing, interpretation and full waveform...
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Stability conditions of explicit integration algorithms when using 3D viscoelastic artificial boundaries
Viscoelastic artificial boundaries are widely adopted in numerical simulations of wave propagation problems. When explicit time-domain integration...
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Viscoelastic dampers for protection of structures against seismic actions
Over the past decades, many vibration control devices have been invented to enhance the integrity of structures and improve their safety when...
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The Investigation of Viscoelastic Relaxation Following the 2018 Mw 6.2 Situbondo, Indonesia, Earthquake
The 2018 Mw 6.2 Situbondo earthquake occurred in an active fault where no earthquakes of magnitude 6 or higher have been recorded in the last decade....
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Variable Parameter Creep Model Based on the Separation of Viscoelastic and Viscoplastic Deformations
The MTS815.02 rock test system is used for performing triaxial compression creep experiments on sandstone to reveal the rheological properties of the...
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A Nonlinear Viscoelastic Model for Wave Propagation in Porous Sandstones Under Uniaxial Loads
Wave propagation is widely used in geologic mining and geotechnical engineering to acquire the structure information of rock masses. As rocks, by...
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A Comparative Study of Viscoelastic Rheological Models Using Finite-Difference Method and an Evaluation of the Seismic Attenuation in the Búzios Field Data
Viscoelastic seismic modeling is essential to incorporate intrinsic attenuation effects in the wave propagation. Attenuation and dispersion can be...
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Rotationally invariant viscoelastic medium with a non-symmetric stiffness matrix
The stiffness matrix of a viscoelastic medium is symmetric in the low—frequency and high—frequency limits, but not for finite frequencies. We thus...
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A New Technology for Enhanced Oil Recovery in Tight Oil Reservoirs: CO2/Low Interfacial Tension Viscoelastic Fluid Co-flooding
Tight reservoirs have poor physical properties, strong heterogeneity and low water flooding natural productivity. CO2 flooding can effectively...
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Triaxial Deformation of the Goldwyer Gas Shale at In Situ Stress Conditions—Part II: Viscoelastic Creep/Relaxation and Frictional Failure
To understand the geomechanical implications of long-term creep (time-dependent deformation) response of gas shale, short-duration creep was recorded...
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Study on the nonlinear time-dependent deformation characteristics and viscoelastic-plastic model of shale under direct shear loading path
The time-dependent deformation of shale under shear load is a crucial factor affecting reservoir fracture closure. This study performed systematic...
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Detectability of low-viscosity zone along lithosphere–asthenosphere boundary beneath the Nankai Trough, Japan, based on high-fidelity viscoelastic simulation
After the 2011 Tohoku-oki earthquake, a seafloor observation system observed rapid landward deformation. These seafloor observation data are...
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Pseudo-dynamic rupture implementation in 3D viscoelastic finite-difference code for physics based broadband ground motion synthetics
The paper presents implementation of state-of-the-art pseudo-dynamic rupture in a 3D viscoelastic fourth-order staggered-grid time-domain...
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Equivalent Viscoelastic Behavior of High-Temperature Granite Under Seismic Wave
This paper investigates the equivalent viscoelastic behavior of granite after different high-temperature treatments under stress waves. The...
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Viscoelastic-plastic constitutive model for the creep and stress relaxation characteristics of a geogrid
The existing geogrid constitutive model does not consider its damage effects under high stress. To analyze the mechanical properties (creep and...
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Application of new viscoelastic acidizing of diverting technology in horizontal wells of Tarim oilfield
The Donghe block of Tarim oilfield is a long horizontal well sandstone reservoir with lots of small layers and serious heterogeneity. After...
