Centrifuge and numerical modelling of sand compaction pile installation

... the sand piles itself, the overall shear strength of the composite ground being taken to be some weighted average of that of the sand pile and the in-situ strength of the soft clay This often ... cylindrical surface of sand pile, s the internal friction angle of sand, and u the upper yield stress of clayey ground If one further assumes that the stress conditions of clay and sand in the unit ... Kc are the coefficients of earth pressure in the sand column and clay, respectively, ds the diameter of the sand column, and Es and Ec the Young’s modulus of the sand and clay, respectively The...

CENTRIFUGE AND NUMERICAL MODELLING OF SOFT CLAY PILE RAFT FOUNDATIONS SUBJECTED TO SEISMIC SHAKING

... CENTRIFUGE AND NUMERICAL MODELLING OF SOFT CLAY- PILE- RAFT FOUNDATIONS SUBJECTED TO SEISMIC SHAKING SUBHADEEP BANERJEE (M.Tech., IIT Roorke) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY ... the effect of the surrounding soft clay was primarily to impose an inertial loading onto the piles, xi thereby increasing the natural frequency of the pile over and above that of the pile foundation ... involving the pile length, moment inertia, pile and soil modulus, mass of the raft and peak ground motion xii Key words: earthquake, pile, soft clay, stiffness degradation, strain softening, resonance...

Experimental and numerical modelling of spudcan penetration in stiff clay overlying soft clay

... penetration in sand overlying clay and in two-layer clay The findings obtained in the study of spudcan penetration in sand overlying clay may therefore not be applicable to the case of two-layer clay ... EXPERIMENTAL AND NUMERICAL MODELLING OF SPUDCAN PENETRATION IN STIFF CLAY OVERLYING SOFT CLAY SINDHU TJAHYONO (B.Eng., NUS) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY ... reported the occurrence of clay crust within thick layers of soft clay in 69 out of 452 soil borings conducted in the Southeast Asian Sunda Shelf Clay crust overlying soft clay was noted to be the...

frequency domain numerical modelling of visco acoustic waves based on finite difference and finite element discontinuous galerkin methods

... discretization of the wave equation in the www.intechopen.com Frequency- Domain Numerical Modelling of Visco- Acoustic Waves with Finite- Difference and Finite- Element Discontinuous Galerkin Methods 153 frequency ... the www.intechopen.com Frequency- Domain Numerical Modelling of Visco- Acoustic Waves with Finite- Difference and Finite- Element Discontinuous Galerkin Methods 139 resolution of the linear system ... wavelength The dimension of the www.intechopen.com Frequency- Domain Numerical Modelling of Visco- Acoustic Waves with Finite- Difference and Finite- Element Discontinuous Galerkin Methods 143 resampled...

Numerical modelling of scale dependent damage and failure of composites

... failure mechanisms and their interactions in composite laminates 1.6 Structure of the thesis In the rest of the thesis, different numerical methods for the modelling of damage and failure of composites ... function matrix of a cohesive element Nedge number of edges in an element NfDOFD number of internal floating DoF of an element xx NfDOFj number of shared floating DoF on edge j of an element ... advantages and disadvantages of a selection of existing methods for the modelling of progressive damage and failure All the methods reviewed above have advantages and limitations on different aspects of...

Numerical modelling of fibre suspensions in newtonian and non newtonian fluids

... may also involve non -Newtonian liquids The influence of non -Newtonian suspending fluids on fibre evolution and fibre- fibre interaction will lead to the changes of fibre orientation and hence ... model for predicting rheological properties of fibre suspensions is suggested Up to this point, fibre suspensions in Newtonian or non -Newtonian fluids are simulated by integrating the fibre model ... rheological properties of fibre suspensions in both Newtonian and non -Newtonian fluids In Chapter 2, we review available models of fibre suspensions and their associated problems Since many contributions...

Rate-Distortion Analysis and Traffic Modelling of Scalable Video Coders

... • Give a detailed R-D analysis and propose novel R-D models for scalable video coders To better understand scalable coders, we examine distortion and bitrate of scalable coders separately, which ... importance and advantages of scalable coding in video transmission and also describe several popular scalable coders In Chapter III, we give a detailed rate-distortion analysis for scalable coders and ... done on the R-D analysis of scalable coders, which limits the applicability of R-D based algorithms in scalable video streaming Thus, we analyze R-D curves of scalable coders and derive an accurate...

Geometric and Mechanical Modelling of Textiles pdf

... work C HAPTER Geometric modelling of textiles 2.1 Introduction TexGen is a software package written by the author for the purpose of modelling the 3D geometry of textiles at the level of the unit ... Smith, Paul Johns and Geoff Tomlinson for their technical support and Professor Tom Hyde, head of the School of Mechanical, Materials and Manufacturing Engineering, for the use of the School facilities ... intersection of two circles of radii r1 and r2 each offset vertically by distances o1 and o2 respectively The parameters r1 , r2 , o1 and o2 can be 16 C HAPTER 2: G EOMETRIC MODELLING OF TEXTILES...

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Experimental and numerical investigation of heat transferand phase change phenomena during excimer laser interactionwith nickel

... explosive phase change occurs at a laser ~uence of about 4[1 J cm−1[ 2[ Numerical modeling Numerical modeling is carried out to compute the heat transfer and phase change processes during excimer laser ... 2[ Velocity of the plume front and laser energy scattered by the laser! evaporated plume as a function of laser ~uence[ plume\ the percentage of laser energy scattered from the plume and the transmissivity ... of laser energy by the laser! evaporated plume is accounted for by using the measured transient trans! missivity of the excimer laser beam through the laser! evaporated plume[ Results of the numerical...

Báo cáo sinh học: " Research Article Analysis and Numerical Solutions of Positive and Dead Core Solutions of Singular Sturm-Liouville Problems" pptx

... in Section 3, where for diﬀerent values of λ, we study positive, pseudo dead core, and dead core solutions of problem 1.9a - 1.9b and positive solutions of problem 1.5a - 1.5b Analytical Results ... unique dead core solution and a unique positive solution of problem 1.9a - 1.9b iii For each λ ∈ 4/9 3/ 3α 4β 3/2 , M , there exist a unique dead core solution and exactly two positive solutions of ... and 1.6a holds for t ∈ ρ, The interval 0, ρ is called the dead core of u If ρ 0, then u is called a pseudo dead core solution of problem 1.6a - 1.6b The aim of this paper is twofold First of...

Báo cáo hóa học: "TERMINAL VALUE PROBLEM FOR SINGULAR ORDINARY DIFFERENTIAL EQUATIONS: THEORETICAL ANALYSIS AND NUMERICAL SIMULATIONS OF GROUND STATES" pdf

... Proof By the continuation of solutions and the singularity of ᏷ at the point P0 , the set ᏷(P0 ) = ∅ Taking into account the nature of the vector field and the definition of the singularity of ... ,ρ0 ) ∈ E ⊆ ∂ω and the family ᐄ(P0 ) of all noncontinuable solutions of the initial value problem (2.6) By the continuity of the nonlinearity and the nature of the vector field (sign of f ), we have ... boundary value problems for higher-order linear differential equations with strong singularities, Boundary Value Problems 2006 (2006), Article ID 83910, 32 pages [2] J V Baxley, Boundary value problems...

Báo cáo hóa học: "ON EXPLICIT AND NUMERICAL SOLVABILITY OF PARABOLIC INITIAL-BOUNDARY VALUE PROBLEMS ALEXANDER KOZHEVNIKOV AND OLGA LEPSKY " pptx

... are very natural for solvability of parabolic initial-boundary value problems These spaces as well as the solvability have been investigated by Slobodecki˘ [9], Agranoviˇ and Viˇik [1], V ı c ... Solonnikov, and N N Uralzeva, Linear and Quasi-Linear Equations of Parabolic Type, American Mathematical Society, Rhode Island, 1968 [6] J.-L Lions and E Magenes, Non-Homogeneous Boundary Value Problems ... (x,t) ∈ Ω+ × R+ (3.6) 10 On explicit and numerical solvability Let us note that since the functions fk,r are linearly independent and the operator in the right-hand side of (3.6) is invertible, then...

Báo cáo lâm nghiệp:"Shoot growth and phenology modelling of grafted Stone pine (Pinus pinea L.) in Inner Spain" potx

... mass-selected within the Meseta Norte stonepine stands The ramets were planted in 1992 in × m setting in a gap of an aged stonepine stand, so lateral pollination guarantees cone setting An automatic ... pattern of relative growth referred to final amount The established model Growth and phenology modelling of Stone pine Table III Analysis of variance for shoot and cone growth parameters b: moment of ... plantaciones de Pinus pinea L en tierras agrarias de la provincia de Valladolid, Investig Agrar Sist Recur For (2000) 269–303 [39] Mutke S., Gordo J., Gil L., The Stone Pine (Pinus pinea L.) Breeding Programme...

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