Results 111 to 120 of about 226,308 (321)
Energy Science &Engineering, EarlyView.ABSTRACT The permeability of coal reservoirs is predominantly controlled by the present tectonic stress field. This study systematically integrates macro‐ and micro‐scale analytical methods to investigate the controlling mechanisms of tectonic stress on pore‐fracture characteristics and permeability in the Longtan Formation coal reservoirs.
Guoqing He +6 more
wiley +1 more source
3d numerical model of a confined fracture tests in concrete [PDF]
, 2013 The paper deals with the numerical simulation of a confined fracture test in concrete. The test is part of the experimental work carried out at ETSECCPB-UPC in order to elucidate the existence of a second mode of fracture under shear and high compression,
Carol, Ignacio +3 more
core
A Constitutive Model Allowing for Particle Size‐Shape Coevolution
International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT This paper presents a constitutive model developed within the Continuum Breakage Mechanics (CBM) framework. The proposed model explicitly accounts for particle shape evolution during the compression of crushable granular materials. Most importantly, the proposed formulation includes a novel expression of the dissipation function that enables a
Divyanshu Lal, Giuseppe Buscarnera
wiley +1 more source
Mechanical Properties and Fracture Surface Morphology of Quartz Sandstone Under Triaxial Shear
工程科学与技术To study the shear damage deformation characteristics of intact rock in rock slopes under three-dimensional compressive–shear stress conditions, 16 sets of triaxial shear tests were conducted on saturated intact fine-grained quartz sandstone with simple ...
Zhinan LIN +4 more
doaj
An Analytical Model for the Triaxial Collapse of Cosmological Perturbations
, 1994 We present an analytical model for the non-spherical collapse of overdense regions out of a Gaussian random field of initial cosmological perturbations.
Eisenstein, Daniel J., Loeb, Abraham
core +1 more source
Neohypoplasticity for Sand Coupled With the Generalized Intergranular Strain Concept
International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT This work presents the coupling of the recently revisited advanced hypoplastic constitutive sand model called neohypoplasticity (NHP) with the more recently introduced concept of the generalized intergranular strain (GIS) to account for soil behavior due to small strains. The latter is essential for the simulation of cyclic deformations.
Luis Mugele +2 more
wiley +1 more source
Prediction of the Behaviour of Monopiles Under Drained Two‐Way Cyclic Lateral Loading in Sand
International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT The monopile is considered as one of the preferred geotechnical foundations for the offshore wind energy converter; therefore, its cyclic behaviour is one of the major concerns in the design. In the current design approaches, the prediction of two‐way cyclic behaviour mainly depends on empirical equations, in which the specific site conditions
Shuhan Cao +2 more
wiley +1 more source
Determination of Thermal Damage and Failure Time Analysis in Rocks Using Stochastic Models
Quality and Reliability Engineering International, EarlyView.ABSTRACT This study presents a stochastic modeling framework for estimating thermal damage and predicting failure time in fine‐grained Dholpur sandstone subjected to high‐temperature conditions. Unlike conventional approaches that rely on extensive thermally altered physical and mechanical properties, the proposed method utilizes only temperature and ...
Ankush Sharma
wiley +1 more source
Advances in Civil Engineering, 2018 Consolidated undrained triaxial compression tests were performed to investigate the shear strength behavior of the solidified dredged materials (SDM). The variation law of deviator stress and excess pore water pressure with the increase of the applied ...
Jianwen Ding +4 more
doaj +1 more source
Application and Analysis of Measurement Model for Calibrating Spatial Shear Surface in Triaxial Test [PDF]
, 2017 Zhihua Zhang +3 more
openalex +1 more source