Mechanics of Cohesive-frictional Materials最新文献_第7页

TIME EFFECTS IN ROCK MECHANICS, by N. D. Cristescu and U. Hunsche, Wiley, Chichester, 1997. ISBN 0-471-95517-5. GB£50.00. 《岩石力学中的时间效应》，N.D.Cristescu和U.Hunsche著，威利，奇切斯特，1997年。是0-471-95517-5。GB£50.00。

Mechanics of Cohesive-frictional Materials Pub Date : 2000-01-01 DOI: 10.1002/(SICI)1099-1484(200001)5:1<83::AID-CFM82>3.0.CO;2-H

Jacques Desrues

引用次数: 0

An elastoplastic model for frictional and cohesive materials and its application to cemented sands 摩擦粘性材料的弹塑性模型及其在胶结砂中的应用

Mechanics of Cohesive-frictional Materials Pub Date : 1999-11-16 DOI: 10.1002/(SICI)1099-1484(199911)4:6<525::AID-CFM72>3.0.CO;2-X

Dr. De'an Sun, Hajime Matsuoka

{"title":"An elastoplastic model for frictional and cohesive materials and its application to cemented sands","authors":"Dr. De'an Sun, Hajime Matsuoka","doi":"10.1002/(SICI)1099-1484(199911)4:6<525::AID-CFM72>3.0.CO;2-X","DOIUrl":"https://doi.org/10.1002/(SICI)1099-1484(199911)4:6<525::AID-CFM72>3.0.CO;2-X","url":null,"abstract":"It has been found that the experimental results on frictional and cohesive materials such as cemented sands and unsaturated soils obtained under constant mean effective principal stress (σm=const.) in three-dimensional (3D) stress can be consistently arranged on the concept of the Extended Spatially Mobilized Plane (the extended-SMP), which is modified from the original SMP by introducing cohesion parameter σ0(=c cot ϕ). Consequently, an elastoplastic model for frictional and cohesive materials is developed from the extended-SMP and the tij-sand model for frictional materials by taking the effect of cohesion (σ0) into consideration. The model covers both Von Mises type model for metals (σ0→∞) and tij-sand model for granular materials (σ0=0) at two extremes. In this paper, the derivation of the proposed model, the physical meaning and determination of seven model parameters, the comparison of the model predictions with the results of triaxial compression, triaxial extension and true triaxial tests on cemented sands, and the relationship among the proposed model, the plastic theory of Mises type for metals and an elastoplastic model for granular materials, are presented. Copyright © 1999 John Wiley & Sons, Ltd.","PeriodicalId":100899,"journal":{"name":"Mechanics of Cohesive-frictional Materials","volume":"4 6","pages":"525-543"},"PeriodicalIF":0.0,"publicationDate":"1999-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/(SICI)1099-1484(199911)4:6<525::AID-CFM72>3.0.CO;2-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72319014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Experiments and modelling of silty sands susceptible to static liquefaction 易受静态液化影响的粉砂质的试验和建模

Mechanics of Cohesive-frictional Materials Pub Date : 1999-11-16 DOI: 10.1002/(SICI)1099-1484(199911)4:6<545::AID-CFM73>3.0.CO;2-O

Jerry A. Yamamuro, Poul V. Lade

{"title":"Experiments and modelling of silty sands susceptible to static liquefaction","authors":"Jerry A. Yamamuro, Poul V. Lade","doi":"10.1002/(SICI)1099-1484(199911)4:6<545::AID-CFM73>3.0.CO;2-O","DOIUrl":"https://doi.org/10.1002/(SICI)1099-1484(199911)4:6<545::AID-CFM73>3.0.CO;2-O","url":null,"abstract":"Most historic cases of liquefaction have been found to occur in alluvial (water) deposited silty sands. Currently, the effect of non-plastic fines (particles smaller than No. 200 sieve) on the liquefaction behaviour of sands is viewed to be either negligible or its presence actually inhibits liquefaction. Undrained triaxial compression test results performed on silty sands clearly indicate a direct correlation between the quantity of finer, non-plastic constituents and the liquefaction potential of granular soils. Increasing the fines content increases the liquefaction potential, even though the density increases. Complete static liquefaction occurs at low confining pressures. As confining pressures increase, the liquefaction potential decreases resulting in increased stability. Thus, silty sands exhibit a ‘reverse’ pattern of soil behaviour with confining pressure. Drained tests indicate both a large contractive volume change and a suppressed friction angle at low confining pressures, and this explains the undrained behaviour. It is hypothesized that the mechanism underlying this behaviour is related to the formation of a particle structure between the large and small grains which creates a highly compressible soil fabric. This ‘reverse’ behaviour pattern makes predictions of static liquefaction of silty sands difficult. However, simple modifications to the Single Hardening Model yield surface formulation enables predictions of this behaviour pattern. Copyright © 1999 John Wiley & Sons, Ltd.","PeriodicalId":100899,"journal":{"name":"Mechanics of Cohesive-frictional Materials","volume":"4 6","pages":"545-564"},"PeriodicalIF":0.0,"publicationDate":"1999-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/(SICI)1099-1484(199911)4:6<545::AID-CFM73>3.0.CO;2-O","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72319013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 44

Scale effects on sea ice fracture 海冰破裂的尺度效应

Mechanics of Cohesive-frictional Materials Pub Date : 1999-11-16 DOI: 10.1002/(SICI)1099-1484(199911)4:6<505::AID-CFM67>3.0.CO;2-P

S. V. Mulmule, J. P. Dempsey

引用次数: 31

Experiments and modelling of silty sands susceptible to static liquefaction 易受静态液化影响的粉质砂的实验和模型

Mechanics of Cohesive-frictional Materials Pub Date : 1999-11-01 DOI: 10.1002/(SICI)1099-1484(199911)4:6<545::AID-CFM73>3.0.CO;2-O

J. Yamamuro, P. Lade

{"title":"Experiments and modelling of silty sands susceptible to static liquefaction","authors":"J. Yamamuro, P. Lade","doi":"10.1002/(SICI)1099-1484(199911)4:6<545::AID-CFM73>3.0.CO;2-O","DOIUrl":"https://doi.org/10.1002/(SICI)1099-1484(199911)4:6<545::AID-CFM73>3.0.CO;2-O","url":null,"abstract":"Most historic cases of liquefaction have been found to occur in alluvial (water) deposited silty sands. Currently, the effect of non-plastic fines (particles smaller than No. 200 sieve) on the liquefaction behaviour of sands is viewed to be either negligible or its presence actually inhibits liquefaction. Undrained triaxial compression test results performed on silty sands clearly indicate a direct correlation between the quantity of finer, non-plastic constituents and the liquefaction potential of granular soils. Increasing the fines content increases the liquefaction potential, even though the density increases. Complete static liquefaction occurs at low confining pressures. As confining pressures increase, the liquefaction potential decreases resulting in increased stability. Thus, silty sands exhibit a ‘reverse’ pattern of soil behaviour with confining pressure. Drained tests indicate both a large contractive volume change and a suppressed friction angle at low confining pressures, and this explains the undrained behaviour. It is hypothesized that the mechanism underlying this behaviour is related to the formation of a particle structure between the large and small grains which creates a highly compressible soil fabric. This ‘reverse’ behaviour pattern makes predictions of static liquefaction of silty sands difficult. However, simple modifications to the Single Hardening Model yield surface formulation enables predictions of this behaviour pattern. Copyright © 1999 John Wiley & Sons, Ltd.","PeriodicalId":100899,"journal":{"name":"Mechanics of Cohesive-frictional Materials","volume":"70 1","pages":"545-564"},"PeriodicalIF":0.0,"publicationDate":"1999-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79944047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 45

An elastoplastic model for frictional and cohesive materials and its application to cemented sands 摩擦和粘性材料的弹塑性模型及其在胶结砂中的应用

Mechanics of Cohesive-frictional Materials Pub Date : 1999-11-01 DOI: 10.1002/(SICI)1099-1484(199911)4:6<525::AID-CFM72>3.0.CO;2-X

De’an Sun, H. Matsuoka

引用次数: 12

Scale effects on sea ice fracture 海冰断裂的尺度效应

Mechanics of Cohesive-frictional Materials Pub Date : 1999-11-01 DOI: 10.1002/(SICI)1099-1484(199911)4:6<505::AID-CFM67>3.0.CO;2-P

S. Mulmule, J. Dempsey

引用次数: 31

A new joint element for the analysis of media having discrete discontinuities 用于分析具有离散不连续性的介质的一种新的联合单元

Mechanics of Cohesive-frictional Materials Pub Date : 1999-10-08 DOI: 10.1002/(SICI)1099-1484(199909)4:5<487::AID-CFM76>3.0.CO;2-Z

J. S. Lee, G. N. Pande

{"title":"A new joint element for the analysis of media having discrete discontinuities","authors":"J. S. Lee, G. N. Pande","doi":"10.1002/(SICI)1099-1484(199909)4:5<487::AID-CFM76>3.0.CO;2-Z","DOIUrl":"https://doi.org/10.1002/(SICI)1099-1484(199909)4:5<487::AID-CFM76>3.0.CO;2-Z","url":null,"abstract":"A homogenization technique is applied to develop a new interface or joint element for the finite element analysis of media having discrete or instantaneous discontinuities such as rock masses including a finite number of joints, soil–structure and soil–reinforcement interface, localised shear cracks, etc. The joint or crack is treated as an inclusion in the media. Using an average rule, the influence to the joint is smeared into a small region of the adjacent intact material. The constitutive model in the region is defined in terms of constitutive properties of both the intact media and the joint as well as the geometry of the homogenized domain. The proposed element has been implemented in a finite element program and its performance has been compared with that of standard continuum finite elements. The results of numerical analysis are virtually insensitive to the thickness of the homogenized region, which is the main advantage of this technique over other conventional joint elements. Copyright © 1999 John Wiley & Sons, Ltd.","PeriodicalId":100899,"journal":{"name":"Mechanics of Cohesive-frictional Materials","volume":"4 5","pages":"487-504"},"PeriodicalIF":0.0,"publicationDate":"1999-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/(SICI)1099-1484(199909)4:5<487::AID-CFM76>3.0.CO;2-Z","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72309712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

An interal length scale in dynamic strain localization of multiphase porous media 多相多孔介质动态应变局部化中的长度尺度

Mechanics of Cohesive-frictional Materials Pub Date : 1999-10-08 DOI: 10.1002/(SICI)1099-1484(199909)4:5<443::AID-CFM69>3.0.CO;2-6

H. W. Zhang, L. Sanavia, B. A. Schrefler

引用次数: 67

Determination of parameters of a hypoplastic constitutive model from properties of grain assemblies 从晶粒组合特性确定亚塑性本构模型的参数

Mechanics of Cohesive-frictional Materials Pub Date : 1999-10-08 DOI: 10.1002/(SICI)1099-1484(199909)4:5<461::AID-CFM71>3.0.CO;2-P

I. Herle, G. Gudehus

引用次数: 444