標題: Titlebook: Bifurcations, Instabilities, Degradation in Geomechanics; George E. Exadaktylos,Ioannis G. Vardoulakis Book 2007 Springer-Verlag Berlin He [打印本頁] 作者: STRI 時間: 2025-3-21 18:23
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書目名稱Bifurcations, Instabilities, Degradation in Geomechanics影響因子(影響力)學科排名
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書目名稱Bifurcations, Instabilities, Degradation in Geomechanics網絡公開度學科排名
書目名稱Bifurcations, Instabilities, Degradation in Geomechanics被引頻次
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書目名稱Bifurcations, Instabilities, Degradation in Geomechanics讀者反饋
書目名稱Bifurcations, Instabilities, Degradation in Geomechanics讀者反饋學科排名
作者: Vaginismus 時間: 2025-3-21 23:17
Experimental Investigation of Instabilities of Granular Materials in Relation to Dilatancy and Fabri soils with reference to anisotropy and dilatancy. One of the findings of this investigation is the elucidation of the microstructural changes accompanying the instability behaviour of granular materials when all effective stresses nullify such as in static liquefaction. It is found that strong forc作者: Instantaneous 時間: 2025-3-22 02:12
Compactive Cataclastic Flow in Tuffeau de Maastricht Calcarenite: Mechanical Deformation & Permeabilittle faulting and cataclastic flow. Before the onset of shear-enhanced compaction, permeability was primarily controlled by the effective mean stress, independent of the deviatoric stresses. With the onset of shear-enhanced compaction, however, coupling of the deviatoric and hydrostatic stresses in作者: 失望未來 時間: 2025-3-22 05:03
Entropy and Material Instability in the Quasi-Static Mechanics of Granular Mediaing, resulting from propagation of cracks perpendicular to the loading direction. As regards uniaxial compression, consideration of non-zero crack openings is mandatory in order to predict a typical relation between tensile and compressive strengths, amounting to about 1:12. Thereby, uniaxial compre作者: 含糊其辭 時間: 2025-3-22 10:24 作者: micronized 時間: 2025-3-22 13:58
Shear Zone Formation in 2D Random Granular Specimens within Enhanced Hypoplasticity). As the load increases, these stress variations become stronger and, eventually, produce a macroscopic tensile crack at the place where the tension was maximal. Further growth of the macrocrack proceeds by initiating new segments, offset from the main crack plane in order to avoid the places under作者: Mutter 時間: 2025-3-22 20:08
Kinematics of Shear Zone Deformation in Soft Sensitive ClaysSS) test and one dimensional soil column is simulated to analyze the coupled strain softening pore water mechanism. This study is initiated to test the hypothesis that a finite shear band thickness may result for a given deformation rate.作者: Hay-Fever 時間: 2025-3-23 00:51 作者: Fester 時間: 2025-3-23 05:20 作者: defile 時間: 2025-3-23 08:53 作者: 打火石 時間: 2025-3-23 10:33
Bildung von Intervisionsgruppen,ing, resulting from propagation of cracks perpendicular to the loading direction. As regards uniaxial compression, consideration of non-zero crack openings is mandatory in order to predict a typical relation between tensile and compressive strengths, amounting to about 1:12. Thereby, uniaxial compre作者: Cognizance 時間: 2025-3-23 14:52 作者: Migratory 時間: 2025-3-23 19:26 作者: cocoon 時間: 2025-3-24 01:39 作者: Arresting 時間: 2025-3-24 02:25
Bifurcations, Instabilities, Degradation in Geomechanics作者: parasite 時間: 2025-3-24 07:27
Bifurcations, Instabilities, Degradation in Geomechanics978-3-540-49342-6作者: refraction 時間: 2025-3-24 13:09 作者: 起波瀾 時間: 2025-3-24 17:10
Third Invariant Dependent Single Yield Surface Model and Localization Conditions for High Porosity Sr to the direction of maximum compression, with pure compactant strain, while shear bands form at an angle to the direction of maximum compression, with shear strain accompanied by either compactant or dilatant strain normal to the band. Recent experimental evidence indicates that mechanical behavio作者: 使腐爛 時間: 2025-3-24 22:49 作者: 拖債 時間: 2025-3-25 00:02
Experimental Investigation of Instabilities of Granular Materials in Relation to Dilatancy and Fabrinular materials. The basic premise is that a granular material such as sand has at the outset a certain potential to dilate by an amount commensurate with the nature of the applied external loads (stress or strain imposed) and how conducive they are to fabric changes. As such, the deformation of den作者: projectile 時間: 2025-3-25 06:10
Compactive Cataclastic Flow in Tuffeau de Maastricht Calcarenite: Mechanical Deformation & Permeabilto back-test analyze the experimental results was the one developed by Lade and Kim, which employs all three invariants. The model parameters were calibrated based on conventional triaxial and hydrostatic experiments. In order to predict the formation of localization zones, bifurcation analysis was 作者: 可轉變 時間: 2025-3-25 09:24 作者: 強行引入 時間: 2025-3-25 14:39
Entropy and Material Instability in the Quasi-Static Mechanics of Granular Mediaion” anticipated in previous work (.). After a brief review of the maximum-entropy model, it is shown that a special case allows for nonconvex pressure-volume response of a kind that could lead to heterogeneous stress states in an isotropically compressed granular packing.作者: Decongestant 時間: 2025-3-25 18:40 作者: Euphonious 時間: 2025-3-25 21:36
Shear Zone Formation in 2D Random Granular Specimens within Enhanced Hypoplasticityation within a granular specimen during a conventional plane strain compression test. For a simulation of the mechanical behavior of a sand specimen during a monotonous deformation path, a hypoplastic constitutive enhanced by a characteristic length of micro-structure within a micro-polar, nonlocal 作者: adhesive 時間: 2025-3-26 03:45 作者: hedonic 時間: 2025-3-26 08:01 作者: 粘 時間: 2025-3-26 09:39
Entropy and Material Instability in the Quasi-Static Mechanics of Granular Mediaerials damaged by mode I type propagating microcracks. For this purpose stiffness estimates for representative volume elements (RVEs) of a microcracked material (based on continuum micromechanics) are combined with the energy release rate criterion for the behavior of one single penny-shaped crack e作者: malapropism 時間: 2025-3-26 12:49
Modeling the Influence of Pressure and Moisture Content on the Disintegration of Weathered Rockfill in the model for large shearing. With respect to a pressure dependent relative density the model can capture the essential mechanical properties of initially loose and dense granular materials with a single set of constants. While the calibration and application of hypoplastic models has already bee作者: 漫步 時間: 2025-3-26 17:09 作者: UNT 時間: 2025-3-26 22:04
A Rational Approach to Stress-Dilatancy Modelling Using an Explicit Micromechanical Formulationndary value problems with a dominating failure mode I were simulated: uniaxial tension and a three-point bending test for concrete beams with a different size. To model the material behaviour, two different continuum approaches were used: elasto-plastic and an isotropic damage constitutive model wit作者: 未完成 時間: 2025-3-27 03:16
Kinematics of Shear Zone Deformation in Soft Sensitive Claysith further increase of shear strain i.e. second order work becomes negative, during the shear deformation and will therefore develop excess pore pressure in the shear bands. Due to the low permeability of clays in combination with a generally high deformation rate, the failure process is often cons作者: 解脫 時間: 2025-3-27 07:57
,Interviews über Draht und Papier,h the title, .. Mohr’s question cannot be answered without resorting to experiments carefully and systematically run. Experiments, however do not give definite answers, since they are always subject to theoretical interpretation: In order to arrive to some conclusion one needs a theoretical framewor作者: Chromatic 時間: 2025-3-27 09:46
https://doi.org/10.1007/978-3-322-80444-0r to the direction of maximum compression, with pure compactant strain, while shear bands form at an angle to the direction of maximum compression, with shear strain accompanied by either compactant or dilatant strain normal to the band. Recent experimental evidence indicates that mechanical behavio作者: 側面左右 時間: 2025-3-27 13:59
https://doi.org/10.1007/978-3-322-80444-0The model assumes that the main mechanism of borehole collapse takes place in the form of (pre-existing or formed) layers buckling [.]. The model introduces a combination of fracture mechanics parameters with length dimension that scale the size of the holes allowing for size effect predictions. We 作者: vibrant 時間: 2025-3-27 21:21
Alexander Bogner,Beate Littig,Wolfgang Menznular materials. The basic premise is that a granular material such as sand has at the outset a certain potential to dilate by an amount commensurate with the nature of the applied external loads (stress or strain imposed) and how conducive they are to fabric changes. As such, the deformation of den作者: 心胸開闊 時間: 2025-3-28 00:52
Alexander Bogner,Beate Littig,Wolfgang Menzto back-test analyze the experimental results was the one developed by Lade and Kim, which employs all three invariants. The model parameters were calibrated based on conventional triaxial and hydrostatic experiments. In order to predict the formation of localization zones, bifurcation analysis was 作者: pulmonary-edema 時間: 2025-3-28 06:10
Technisch-organisatorische Grundlagen,s. Experimentally, concrete specimens exhibit a network of microscopic cracks that nucleate sub-parallel to the axis of loading. Due to the presence of heterogeneities in the material (aggregates surrounded by a cement matrix), tensile transverse strains generate a self-equilibrated stress field ort作者: Nostalgia 時間: 2025-3-28 06:59 作者: 宮殿般 時間: 2025-3-28 13:07 作者: 使增至最大 時間: 2025-3-28 18:03 作者: anesthesia 時間: 2025-3-28 19:13 作者: Radiculopathy 時間: 2025-3-29 00:30 作者: 使入迷 時間: 2025-3-29 05:55 作者: 胖人手藝好 時間: 2025-3-29 08:47 作者: NAV 時間: 2025-3-29 13:43 作者: certitude 時間: 2025-3-29 19:36
https://doi.org/10.1007/978-3-540-78853-9ndary value problems with a dominating failure mode I were simulated: uniaxial tension and a three-point bending test for concrete beams with a different size. To model the material behaviour, two different continuum approaches were used: elasto-plastic and an isotropic damage constitutive model wit作者: 向外才掩飾 時間: 2025-3-29 22:45
https://doi.org/10.1007/978-3-540-78853-9ith further increase of shear strain i.e. second order work becomes negative, during the shear deformation and will therefore develop excess pore pressure in the shear bands. Due to the low permeability of clays in combination with a generally high deformation rate, the failure process is often cons作者: Relinquish 時間: 2025-3-30 03:51 作者: 藐視 時間: 2025-3-30 06:14 作者: BRACE 時間: 2025-3-30 11:56 作者: 褻瀆 時間: 2025-3-30 12:54
Entropy and Material Instability in the Quasi-Static Mechanics of Granular Mediaion” anticipated in previous work (.). After a brief review of the maximum-entropy model, it is shown that a special case allows for nonconvex pressure-volume response of a kind that could lead to heterogeneous stress states in an isotropically compressed granular packing.作者: Ferritin 時間: 2025-3-30 20:17 作者: cacophony 時間: 2025-3-30 21:46 作者: NATTY 時間: 2025-3-31 02:23
A DEM Study of Compaction Band Formationseverely decrease the permeability of a soil. The implications this might have for the recovery of oil from a reservoir are immense. A thorough understanding of the micromechanical processes involved in their triggering and propagation is therefore needed.作者: 小爭吵 時間: 2025-3-31 06:31 作者: Palliation 時間: 2025-3-31 12:04
Book 2007olutions, numerical methods, experimental techniques, and case histories are presented. Beside fundamental research findings, applications in geotechnical, petroleum, mining, and bulk materials engineering are emphasised. .作者: Entirety 時間: 2025-3-31 13:36 作者: bromide 時間: 2025-3-31 20:56 作者: 誘導 時間: 2025-4-1 00:19
Interpretation of the Scale Effect in Perforation Failurecorrelation between hole strength normalized by the uniaxial compressive strength and hole size normalized by the square of the division of rock fracture toughness over its tensile strength. These findings can be used for constructing mechanical models to predict failure in small size holes such as perforations.
