Computational Modeling of Multiphase Geomaterials by Fusao Oka PDF

By Fusao Oka

ISBN-10: 1466570644

ISBN-13: 9781466570641

"Preface during the last 3 a long time, reports on constitutive versions and numerical research tools were good constructed. these days, numerical equipment play a crucial function in geotechnical engineering and in a comparable task referred to as computational geotechnics. This booklet bargains with the constitutive modeling of multiphase geomaterials and numerical tools for predicting the habit of geomaterials such as Read more...

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51) where F is the gravitational force and a is the inertial force. 55) 3 where Einstein’s summation convention Σ nkek ≡ nkek is used. 57) m ,k=1 where σ mk is called the stress tensor. The kth component of t is given by tk = σ mk nm . σ mk denotes the component of the stress vector in the xk direction acting on the perpendicular plane to the xm axis. 58) The Cauchy stress tensor is expressed by both σ ij and Tij in this book. 3. 59) where σ is the magnitude of the stress vector. 61) is an eigenvalue equation.

90) A is the angular velocity tensor of the unstarred frame to the starred frame. In the following, we will examine the deformation gradient (FiJ = ∂ xi /∂X J ), velocity gradient (Lij = ∂vi /∂x j , L = FF −1 ), rate of deformation (stretching) tensor D, spin tensor W, and Cauchy stress tensor T. 94) Consequently, L is not objective. 95) D is objective. 96) Hence, W is not objective. W is a continuum spin tensor and does not represent rigid body motion. 98) Then, the time derivative of the stress tensor is not objective.

3 the equations for the unsaturated saturated soils are presented. 1 Introduction The governing equations for pore water–soil coupled problems can be derived from Biot’s theory of water saturated porous media, which is based on continuum mechanics (Biot 1941, 1955, 1956, 1962; Atkin and Craine 1976; Bowen 1976). Before Biot’s work, Fillunger (1913) proposed a theory of porous media filled with water. Historical development of the theory of porous media has been well documented by de Boer (2000a,b).

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Computational Modeling of Multiphase Geomaterials by Fusao Oka

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