標題: Titlebook: Constitutive Modelling of Granular Materials; Dimitrios Kolymbas Book 2000 Springer-Verlag Berlin Heidelberg 2000 Constitutive.bifurcation [打印本頁] 作者: Adentitious 時間: 2025-3-21 20:06
書目名稱Constitutive Modelling of Granular Materials影響因子(影響力)
書目名稱Constitutive Modelling of Granular Materials影響因子(影響力)學(xué)科排名
書目名稱Constitutive Modelling of Granular Materials網(wǎng)絡(luò)公開度
書目名稱Constitutive Modelling of Granular Materials網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Constitutive Modelling of Granular Materials被引頻次
書目名稱Constitutive Modelling of Granular Materials被引頻次學(xué)科排名
書目名稱Constitutive Modelling of Granular Materials年度引用
書目名稱Constitutive Modelling of Granular Materials年度引用學(xué)科排名
書目名稱Constitutive Modelling of Granular Materials讀者反饋
書目名稱Constitutive Modelling of Granular Materials讀者反饋學(xué)科排名
作者: critique 時間: 2025-3-21 23:15
Uniqueness, second order work and bifurcation in hypoplasticityterion are studied. A complete shear band localization analysis is given and considered as a special case of non uniqueness of some boundary value problems. Similarly, invertibility and controlability are studied from the same point of view. Finally a general overview of all these results is given.作者: 鼓掌 時間: 2025-3-22 01:39 作者: 博愛家 時間: 2025-3-22 07:37
Comparison of hypoplastic and elastoplastic modelling of undrained triaxial tests on loose sand non-associative plasticity with combined hardening. Both models perform qualitatively well in spite of some discrepancies in comparison with experiments. A modification of the hypoplastic model is tested showing both an improvement as well as additional malfunctions in the model behaviour.作者: brassy 時間: 2025-3-22 11:44
Book 2000nd, often, disencouraged. This book is expected to serve as a milestone in the present situation, to evaluate the present methodes, to clear up the situation, to focus and encourage for further research activities.作者: 子女 時間: 2025-3-22 16:51 作者: 子女 時間: 2025-3-22 19:24 作者: interference 時間: 2025-3-22 23:12
Does engineering need science?fic base or content; this is usual in most routine engineering, but also in some important works. In some cases, thus, the answer to the title question might be: ”no”. Some clarification is needed. In order to contribute to such a clarification, first of all a definition of science and a definition of engineering is needed.作者: stroke 時間: 2025-3-23 01:45
The influence of time derivative terms on the mechanical behaviour of loose sandseoretical interpretation taking into account the influence of the time factor is suggested. The onset of instability is assumed to be linked to the evolution of state variables: two different constitutive models based on Perzyna type visco-plasticity are introduced. Numerical results are critically compared with experimental data.作者: BUOY 時間: 2025-3-23 07:44 作者: Intellectual 時間: 2025-3-23 10:26
https://doi.org/10.1007/978-3-031-60982-4gle set of constitutive constants. Polar effects within shear zones are investigated by an extension of the basic hypoplastic concept to a polar continuum. The performance of recently developed hypoplastic models is discussed and the results of numerical simulations are compared with experiments.作者: 過分 時間: 2025-3-23 16:19
https://doi.org/10.1007/978-3-031-61664-8eading. Some hopefully improved and physically justified approaches for judging the loss of stability are briefly outlined. As non-cemented soils are not solids, strength and stability criteria as for solids cannot be expected, but a substitute of comparable and desirable simplicity cannot be offered.作者: Culmination 時間: 2025-3-23 21:31 作者: 胎兒 時間: 2025-3-23 23:59
On the physical background of soil strengtheading. Some hopefully improved and physically justified approaches for judging the loss of stability are briefly outlined. As non-cemented soils are not solids, strength and stability criteria as for solids cannot be expected, but a substitute of comparable and desirable simplicity cannot be offered.作者: SEEK 時間: 2025-3-24 05:25
https://doi.org/10.1007/978-3-031-60982-4meaning. Despite the article’s review character some unpublished materials and background information are incorporated, which are otherwise omitted due to space limitation. Hopefully, the presentation will have a certain freshness, even for specialists.作者: Sad570 時間: 2025-3-24 06:59 作者: 規(guī)章 時間: 2025-3-24 13:35 作者: 生存環(huán)境 時間: 2025-3-24 15:20 作者: 憤慨一下 時間: 2025-3-24 20:14
https://doi.org/10.1007/978-3-031-61664-8the correct description of experimental data, and uniqueness. The material constants of hypoplastic equations are globally determined and can be locally optimized when compared to experiments. The strain response envelope technique can be used as a complimentary tool to develop and evaluate any constitutive equation.作者: Integrate 時間: 2025-3-25 00:10
https://doi.org/10.1007/978-3-031-61664-8 strength, variation of void ratio and of geo-static stresses. In particular, it is shown that for a certain degree of weathering, there exists a structural collapse of the specimen, associated to a decrease of void ratio.作者: 圓桶 時間: 2025-3-25 06:32 作者: Intentional 時間: 2025-3-25 10:59
Microscopic approach contributions to constitutive modellingwhich is difficult to access in real physical experiments without intruding upon the material response, can lead to reassessment of the underlying concepts and assumptions inbedded in traditional continuum formulations.作者: Incise 時間: 2025-3-25 12:22
Micromechanically based higher-order continuum models for granular materialso continuum models is that the heterogeneous effects on the particle level can be described more accurately. However, for most granular structures the number of particles is very large, which causes the number of equations that has to be solved for in a discrete system to become large as well.作者: 正論 時間: 2025-3-25 19:25 作者: 天然熱噴泉 時間: 2025-3-25 21:20 作者: 你敢命令 時間: 2025-3-26 01:34 作者: 補充 時間: 2025-3-26 07:46 作者: 表被動 時間: 2025-3-26 09:50 作者: 邪惡的你 時間: 2025-3-26 12:56
Unsupervised and Semi-Supervised Learningterion are studied. A complete shear band localization analysis is given and considered as a special case of non uniqueness of some boundary value problems. Similarly, invertibility and controlability are studied from the same point of view. Finally a general overview of all these results is given.作者: 神化怪物 時間: 2025-3-26 18:21
https://doi.org/10.1007/978-3-031-61664-8presented. The theories and methods are illustrated by examples such as silo flow, settlement of oriented particles, and trapdoor problems. The director theory presented is a first attempt to model oriented particles within such a framework and will be developed further.作者: Chameleon 時間: 2025-3-26 23:21
Urban Village Redevelopment in Beijing non-associative plasticity with combined hardening. Both models perform qualitatively well in spite of some discrepancies in comparison with experiments. A modification of the hypoplastic model is tested showing both an improvement as well as additional malfunctions in the model behaviour.作者: triptans 時間: 2025-3-27 03:31
Book 2000 many different models compete with each other. However, the complexity of the models hinders their comparison, and the potential users are confused and, often, disencouraged. This book is expected to serve as a milestone in the present situation, to evaluate the present methodes, to clear up the si作者: 脾氣暴躁的人 時間: 2025-3-27 09:03 作者: encyclopedia 時間: 2025-3-27 10:02 作者: meditation 時間: 2025-3-27 14:28 作者: Canopy 時間: 2025-3-27 19:49
Hypoplasticity then and nowsoils known as .. Our previous publications on this issue have been purely seriatim and mainly for specialists. It now seems timely to attempt a unified, general presentation, which moreover is directed also to nonspe- cialists. In doing so, some emphasis is placed on the ideas and methodology under作者: 異端邪說2 時間: 2025-3-27 22:49 作者: 外形 時間: 2025-3-28 05:25
Uniqueness, second order work and bifurcation in hypoplasticity boundary value problems are first classified. Uniqueness (and existence) theorems are recalled and relations with the so called second order work criterion are studied. A complete shear band localization analysis is given and considered as a special case of non uniqueness of some boundary value pro作者: 意見一致 時間: 2025-3-28 08:21 作者: Lacunar-Stroke 時間: 2025-3-28 13:31
Microscopic approach contributions to constitutive modellingterials in order to identify the appropriate physically sound continuum model which then might be incorporated into finite element analyses of engineering scale problems. Little progress has been made to achieving this long term objective. However, during the last twenty years, DEM simulations have 作者: Congruous 時間: 2025-3-28 16:29
Discrete and continuum modelling of granular materials between Cosserat and director models is pointed out. A symbolic solution in the form of a finite element based, particle in cell formulation is also presented. The theories and methods are illustrated by examples such as silo flow, settlement of oriented particles, and trapdoor problems. The direct作者: 正常 時間: 2025-3-28 22:18 作者: contrast-medium 時間: 2025-3-28 23:42 作者: 感染 時間: 2025-3-29 06:40
On the physical background of soil strengthcs of granular matter and colloids does not (yet?) offer a substitute. Steady states are first discussed in detail, in particular critical states. They can develop asymptotically only under special granulometric, initial and boundary conditions so that the methods of ideal plasticity are not justifi作者: ADAGE 時間: 2025-3-29 08:17
The influence of time derivative terms on the mechanical behaviour of loose sands saturated and dry sand specimens are tested. The experimental triaxial tests considered are characterised by finite load increments and may be interpreted as creep tests. Even though the axial load is kept constant with time, when collapse takes place, axial strain rate continuously increases. A th作者: dragon 時間: 2025-3-29 15:27
An approach to plasticity based on generalised thermodynamicshese problems provide the motivation for an alternative formulation, based on thermomechanical principles. In this formulation, a constitutive model is defined solely by specification of two thermodynamic potentials: an energy function and a dissipation function (or a yield function). Incremental re作者: 歡樂中國 時間: 2025-3-29 17:04 作者: 拾落穗 時間: 2025-3-29 20:44
Hypoplastic and elastoplastic modelling — a comparison with test dataformance of two entirely different constitutive models: an elastoplastic and a hypoplastic model. On considering input parameters and formulations one might expect completely different stress-strain behaviour. But from the present study it will appear that model performances in relation to real soil作者: 竊喜 時間: 2025-3-30 01:26
Strain response envelope: a complementary tool for evaluating hypoplastic constitutive equations- ial plane. Due to the lack of experimental data, this technique is used numerically mostly to check and classify constitutive models. This paper proposes a critical review of different representations involved in the development of hypoplastic constitutive equations. The evaluation is based on thr作者: Addictive 時間: 2025-3-30 05:18 作者: hemorrhage 時間: 2025-3-30 12:16
The misery of constitutive modellingdly tractable mathematical models. This complexity hinders not only the application of these models to practical problems but also scientific progress, as it impedes comparison and competition of the various approaches. The reasons of this situation are analyzed and some propositions to overcome it are presented.作者: 禁止,切斷 時間: 2025-3-30 13:15 作者: 散布 時間: 2025-3-30 16:37 作者: hermetic 時間: 2025-3-30 22:08 作者: linear 時間: 2025-3-31 03:57
Lecture Notes in Computer Sciencedly tractable mathematical models. This complexity hinders not only the application of these models to practical problems but also scientific progress, as it impedes comparison and competition of the various approaches. The reasons of this situation are analyzed and some propositions to overcome it are presented.作者: tolerance 時間: 2025-3-31 07:39 作者: 代替 時間: 2025-3-31 10:27 作者: 到婚嫁年齡 時間: 2025-3-31 15:59 作者: Cognizance 時間: 2025-3-31 17:32
https://doi.org/10.1007/978-3-031-61664-8In the Mechanics of the Materials we distinguish among continuum and discrete models. Such a distinction is of course an ancient one, which can be traced back to the philosophical controversy between atomists and stoics (see e.g.[7]).作者: Fissure 時間: 2025-4-1 00:49 作者: 樹木中 時間: 2025-4-1 04:27
https://doi.org/10.1007/978-3-642-57018-6Constitutive; bifurcation; civil engineering; dynamics; finite element method; granular material; material作者: 綠州 時間: 2025-4-1 06:34 作者: Fester 時間: 2025-4-1 10:25 作者: Infantry 時間: 2025-4-1 16:45
Lecture Notes in Computer Scienceientific civilisations in which engineering has been practised at the highest level (for instance the ancient Egyptians built the great pyramids and regulated the floods of the river Nile). On the other hand, in the present scientific age a number of engineering operations do not exhibit any scienti
