Results 71 to 80 of about 69,612 (243)
A finite-strain hyperviscoplastic model and undrained triaxial tests of peat
, 2017 This paper presents a finite-strain hyperviscoplastic constitutive model within a thermodynamically consistent framework for peat which was categorised as a material with both rate-dependent and thermodynamic equilibrium hysteresis based on the data ...
Nagel, T., O'Kelly, B. C., Zhang, L.
core
Shearing tests with continuously increasing normal stress [PDF]
, 2006 In the conventional shearing tests the normal force or the normal stiffness are kept constant during the experiment. Sliding under constant normal load occurs in slopes if the environment is not changing during the process.
Ván, Péter, Vásárhelyi, Balázs
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How terrestrial planets traverse spin-orbit resonances: A camel goes through a needle's eye
, 2012 The dynamical evolution of terrestrial planets resembling Mercury in the vicinity of spin-orbit resonances is investigated using comprehensive harmonic expansions of the tidal torque taking into account the frequency-dependent quality factors and Love ...
Danby +4 more
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Seismic analysis and design of tunnels within fault ground: A review
Deep Underground Science and Engineering, EarlyView.The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang +6 more
wiley +1 more source
Dynamic response at the terminus of oblique intersecting joints subjected to stress waves
Deep Underground Science and Engineering, EarlyView.This study derives the propagation equation for stress waves impinging upon nonlinear oblique intersecting joints. It analyzes the dynamic response at the terminus of nonlinear oblique intersecting joints subjected to stress waves. Abstract To investigate the dynamic response at the terminus of oblique intersecting joints subjected to stress waves, a ...
Gang Hu +4 more
wiley +1 more source
Lunar penetrometer Patent [PDF]
, 1967 Development and characteristics of pentrometer for measuring physical properties of lunar ...
Beswick, A. G. +2 more
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Energy Science &Engineering, EarlyView.This study leverages machine learning algorithms—specifically artificial neural networks (ANN) and genetic programming (GP)—to forecast and analyze variations in vault settlement measurements during excavation of small interval tunnel. A settlement prediction model was developed and validated through comparative analysis with regression to evaluate the
Wenjie Zhai +7 more
wiley +1 more source
Orbital orientation evolution of massive binary black holes at the centres of non-spherical galaxies
, 2013 At the centre of a spherical and kinematically isotropic galaxy, the orientation of a massive binary black hole (BBH) orbit (i.e., the direction of the BBH orbital angular momentum) undergoes a random walk.
Cui, Xiaobo, Yu, Qingjuan
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Energy Science &Engineering, EarlyView.A novel collaborative control technology of gob‐side entry retention with narrow roadside filling wall is proposed, wherein anchoring end of anchor cable must penetrate the boundary line of stress peak (plastic zone). ABSTRACT Gob‐side entry retention represents a major technological innovation in the history of coal mining, offering numerous ...
Wenxu Liang, Wei Fu, Ziwen Liu
wiley +1 more source
Applying Schwarzschild's orbit superposition method to barred or non-barred disc galaxies
, 2015 We present an implementation of the Schwarzschild orbit superposition method which can be used for constructing self-consistent equilibrium models of barred or non-barred disc galaxies, or of elliptical galaxies with figure rotation.
Athanassoula, E., Vasiliev, Eugene
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