Per Ullidtz

Modelling flexible pavement response and performance Per Ullidtz 2º edição

Textbook concerned with models for predicting the future condition of flexible pavements, as a function of traffic loading, climate, materials, etc., using analytical-empirical methods. With references and index. 
Content 1 Introduction 2 Theory of elasticity   2.1 Elastic parameters   2.2 Stresses and Strains in a continuum 3 Assumptions of the theory of elasticity versus reality  3.1 Stress concentration    3.2 Anisotropy  3.3 Shear sensitivity   3.4 Probabilistic stress distribution 4 Odemark’s method   4.1 Example of the Use of Odemark’s Method   4.2 Westergaard’s equations for rigid pavements5 The Finite Element Method (FEM) 6 Non-linear models 7 Viscous and visco-elastic modes (Rheology)   7.1 Kelvin model   7.2 Maxwell model   7.3 Burgers model  7.4 Parabolic element   7.5 The SHRP model   7.6 Temperature shift factor 8 Distinct Element Method   8.1 Two dimensional stress distribution   8.2 Biaxial tests on angular elements 9 Structural damage prediction   9.1 Example of HDM III model   9.2 Deflection is a poor substitute for bearing capacity   9.3 Asphalt strain criteria  9.4 Continuum Damage Mechanics       9.4.1 Damage based on Actual Stress       9.4.2 Damage based on Energy Density       9.4.3 Damage based on Delayed Elastic Energy Density   9.5 Finite Element simulation of asphalt damage   9.6 Visible cracks in asphalt pavements   9.7 Cracking of Portland Cement bound materials 10 Plastic deformation11 Roughness  11.1 The AASHTO design equation for flexible pavements   11.2 Mathematical Model of Pavement Performance (MMOPP)       11.2.1 Spatial variation of pavement parameters      11.2.2 Climatic variations      11.2.3 Loading 12 Determination of Moduli  12.1 Laboratory tests and equations based on standard tests  12.2 In Situ tests      12.2.1 Wave propagation methods       12.2.2 Falling Weight Deflectometer   12.3 Design values13 Verification of response and performance models  13.1 Verifying response models  13.2 Verifying performance models   13.3 Verification using a PMS (PERS) 14 Surfacing characteristics   14.1 Skid resistance   14.2 Ageing   14.3 Surface wear15 Uniform subsections16 User effects   16.1 Vehicle operating costs   16.2 Accident costs   16.3 Other effects 17 Optimisation18 ConclusionReferences Index