Soil is a matter of its own right, whose properties should be modeled as accurately and reliably as possible. Geoscientists and geotechnical engineers rely on models to describe the properties of soil for engineering purposes. Soils are complex in composition, state and behaviour. This complexity can be mastered using state limits and limit cycles. The author presents constitutive concepts of elastoplasticity and hypoplasticity. The first part of this book deals with constitutive relations. For sand-like soils (psammoids), state limits are introduced, described as attractors, constitutive relations represented by means of related strain and state paths, validated by means of oedeometer, triaxial, cuboidal, simple shear and torsion shear results. The second part deals with boundary value problems for soils which are no more homogeneous with respect to state and composition. The concept of related evolutions of state and shape works throughout more complex boundary value problems.

Soils are complex in composition, state and behaviour Graphical representation helps to lighten the constitutive relations The concept of related evolutions of state and shape works throughout more complex boundary value problems It is a powerful tool which is useful for the description of soils and their properties Includes supplementary material: sn.pub/extras

Autorentext
Gerd Gudehus studied civil engineering in Berlin, where he also completed his doctoral thesis in soil mechanics. In 1973, he became full professor and chairman of the Department of Soil Mechanics and Foundation Engineering at the Institute of Soil and Rock Mechanics, Karlsruhe University. He is head of the Soil Mechanics Section of the German National Geotechnical Society and is engaged in the conservation and restoration of historical retaining walls and in the stabilization of the foundations of historical buildings situated on soft ground.

Inhalt
Prologue.- introduction.- simple psammoids.- simple peloids.- psammoids with reversals.- peloids with reversals.- pore fluid.- bridging gaps.- localization.- fabric.- boundary conditions.- one-dimensional evolutions.- plane-parallel evolutions without ssi.- plane-parallel evolutions with ssi.- axi-symmetric evolutions.- less symmetric evolutions.- critical phenomena.- epilogue.- references.- symbols and acronyms.