Continuum-Mechanics-Based Rheological Formulation for Debris Flow
This paper aims to assess the validity of the generalized viscoplastic fluid (GVF) model in the light of both the classical relative-viscosity versus concentration relation and the dimensionless...
The Pipe/Soil Stiffness Ratio Variable
This paper reviews the factors which affect the reactions and defines performance limitations of buried flexible plastic pipe as a function of load-induced strains and deflections. The...
Sliplining: Design and Installation Considerations for Polyethylene Pipe
The design methodology and installation procedure for polyethylene slipline renewal are discussed. When designing there are two critical phases which must be considered: (1) short-term...
Microtunneling with PVC Pipe
PVC is a suitable and economical product for sewer system construction. However, in the past, utilization of PVC sewer pipe in microtunneling was impossible due to axial thrust load limitations...
An Evaluation of Fiberglass Pipe Made by Three Different Manufacturing Processes for use in Water Transmission Projects
Fiberglass pipe is made primarily using continuous filament wound process, discontinuous helical filament wound process, and centrifugal cast process. Some 40 countries around the world...
Chemical Resistance of Thermosetting Resins Used for Cured-in-Place Pipe
This paper summarizes the chemistry, short term physical properties, and long term chemical resistance for representative epoxy vinyl ester, epoxy, and polyester resins that are currently...
European Way of Standardization in the Field of Underground Pipe Renovation
European standardization is carried out within the framework of CEN (European Committee for Standardization). The development of standards for underground pipe renovation is taking place...
Constitutive models
The constitutive models used in the finite element analysis of reinforced concrete structures are presented from a number of different perspectives. The first part of this chapter presents...
Stabilization of South Texas Soils with Fly Ash
The expansive soils of south Texas have traditionally been stabilized with lime or Portland cement. As an alternative, a class F fly ash was tried to stabilize expansive soils obtained...
Treatment of Calcareous Expansive Clays
The geology, climatic condition and the environment of extreme disintegration, strong hydration and restrained leaching have a large influence on the formation of expansive clays in the...
Slip-Lining Solution
Grouting the annular space between a corroded sewer pipe and newly installed liner pipe is a stage of a typical sewer line rehabilitation project which contains hidden problems and difficulties....
Micromechanical Characterization of Damage-Plasticity in Metal Matrix Composites
A micromechanical theory of damage mechanics and plasticity is proposed for fiber-reinforced metal matrix composites. The composite system is assumed to consist of elastic, continuous...
Rate-Dependent Plasticity Representation for Energy-Absorbing Materials
A three dimensional rate-dependent plasticity constitutive model is developed for rigid polyurethane foams. In the model, the material is decomposed into skeleton and solid matrix from...
Comparative Evaluation of Plasticity Theories Against Tension-Torsion Test at Finite Strain
This paper investigates and evaluates three hardening theories against a variety of nonproportional loading experiments on tubes made of annealed copper. It was concluded that the isotropic...
Nonisothermal Viscoplasticity
A nonisothermal theory of viscoplasticity is formulated for a medium subjected to finite deformation. The basic system of equations consists of the laws of conservation of linear and angular...
Debonding of a Inhomogeneity from a Plastic Matrix
Inclusion debonding is addressed through the formulation and solution of the planar elastic and elastic uniform plastic problems. These problems are variants of the standard transformation...
On the Bifurcation of Elasto-Plastic Crystals During Multiple Slip
Conditions for the localization of deformation in elasto-plastic crystals experiencing multiple slip are discussed using multisurface plasticity theory. In particular, some important characteristics...
Strain-Based Damage Deactivation in Concrete
Motivated by the 'mode I' microcrack opening and closing mechanism, a procedure for the deactivation of the damage is developed. Strain based projection operators are used to negate the...
Distributed Failure Analysis, Fallacies and Remedies
In the past, two distinctly different approaches - smeared and discrete failure descriptions have been utilised to capture failure mechanisms in solids and structures. These two approaches...
Computational Gradient Plasticity
The inclusion of higher-order deformation gradients is of paramount importance for properly describing strain localization within the framework of continuum mechanics. In this contribution...
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