Ebook: Constitutive Modelling of Granular Materials

Constitutive models are the key-stone not only for understanding the mechanical behaviour of granular materials (mainly soils but also other granulates such as sugar, wheat, coal, pellets) but also for carrying out numerical predictions by means of the finite elements method. However the extreme complexity of the behaviour of granular materials gave rise to confusing multiplicity of hardy tractable constitutive models proposed so far. the present book comprises a selection of the state-of the-art contributions of world-wide leading specialists with the aim to evaluate, specify and re-assess the present achievements as well as to point on needs for future research.

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Constitutive models are the key-stone not only for understanding the mechanical behaviour of granular materials (mainly soils but also other granulates such as sugar, wheat, coal, pellets) but also for carrying out numerical predictions by means of the finite elements method. However the extreme complexity of the behaviour of granular materials gave rise to confusing multiplicity of hardy tractable constitutive models proposed so far. the present book comprises a selection of the state-of the-art contributions of world-wide leading specialists with the aim to evaluate, specify and re-assess the present achievements as well as to point on needs for future research.

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Constitutive models are the key-stone not only for understanding the mechanical behaviour of granular materials (mainly soils but also other granulates such as sugar, wheat, coal, pellets) but also for carrying out numerical predictions by means of the finite elements method. However the extreme complexity of the behaviour of granular materials gave rise to confusing multiplicity of hardy tractable constitutive models proposed so far. the present book comprises a selection of the state-of the-art contributions of world-wide leading specialists with the aim to evaluate, specify and re-assess the present achievements as well as to point on needs for future research.
Content:
Front Matter....Pages I-9
The misery of constitutive modelling....Pages 11-24
Does engineering need science?....Pages 25-36
The role of models in civil engineering....Pages 37-55
Hypoplasticity then and now....Pages 57-105
A review of two different approaches to hypoplasticity....Pages 107-145
Uniqueness, second order work and bifurcation in hypoplasticity....Pages 147-165
Stationary states in hypoplasticity....Pages 167-192
Microscopic approach contributions to constitutive modelling....Pages 193-208
Discrete and continuum modelling of granular materials....Pages 209-224
2nd Gradient constitutive models....Pages 225-248
Micromechanically based higher-order continuum models for granular materials....Pages 249-274
Relevant local variables for the change of scale in granular materials....Pages 275-290
On the physical background of soil strength....Pages 291-301
The influence of time derivative terms on the mechanical behaviour of loose sands....Pages 303-318
An approach to plasticity based on generalised thermodynamics....Pages 319-331
Comparison of hypoplastic and elastoplastic modelling of undrained triaxial tests on loose sand....Pages 333-351
Hypoplastic and elastoplastic modelling — a comparison with test data....Pages 353-374
Strain response envelope: a complementary tool for evaluating hypoplastic constitutive equations....Pages 375-396
Modelling weathering effects on the mechanical behaviour of granite....Pages 397-411
A plasticity-based constitutive model for natural soils: a hierarchical approach....Pages 413-438
Experimental bases for a new incremental non-linear constitutive relation with 5 parameters....Pages 439-456
Implicit integration of hypoplastic models....Pages 457-470
Soil-water coupling analysis of progressive failure in cuts with a strain softening model....Pages 471-490
Advances in modelling soil anisotropy....Pages 491-521
Examples of finite element calculations with the hypoplastic law....Pages 523-538
Hypoplastic simulation of complex loading paths....Pages 539-554

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Constitutive models are the key-stone not only for understanding the mechanical behaviour of granular materials (mainly soils but also other granulates such as sugar, wheat, coal, pellets) but also for carrying out numerical predictions by means of the finite elements method. However the extreme complexity of the behaviour of granular materials gave rise to confusing multiplicity of hardy tractable constitutive models proposed so far. the present book comprises a selection of the state-of the-art contributions of world-wide leading specialists with the aim to evaluate, specify and re-assess the present achievements as well as to point on needs for future research.
Content:
Front Matter....Pages I-9
The misery of constitutive modelling....Pages 11-24
Does engineering need science?....Pages 25-36
The role of models in civil engineering....Pages 37-55
Hypoplasticity then and now....Pages 57-105
A review of two different approaches to hypoplasticity....Pages 107-145
Uniqueness, second order work and bifurcation in hypoplasticity....Pages 147-165
Stationary states in hypoplasticity....Pages 167-192
Microscopic approach contributions to constitutive modelling....Pages 193-208
Discrete and continuum modelling of granular materials....Pages 209-224
2nd Gradient constitutive models....Pages 225-248
Micromechanically based higher-order continuum models for granular materials....Pages 249-274
Relevant local variables for the change of scale in granular materials....Pages 275-290
On the physical background of soil strength....Pages 291-301
The influence of time derivative terms on the mechanical behaviour of loose sands....Pages 303-318
An approach to plasticity based on generalised thermodynamics....Pages 319-331
Comparison of hypoplastic and elastoplastic modelling of undrained triaxial tests on loose sand....Pages 333-351
Hypoplastic and elastoplastic modelling — a comparison with test data....Pages 353-374
Strain response envelope: a complementary tool for evaluating hypoplastic constitutive equations....Pages 375-396
Modelling weathering effects on the mechanical behaviour of granite....Pages 397-411
A plasticity-based constitutive model for natural soils: a hierarchical approach....Pages 413-438
Experimental bases for a new incremental non-linear constitutive relation with 5 parameters....Pages 439-456
Implicit integration of hypoplastic models....Pages 457-470
Soil-water coupling analysis of progressive failure in cuts with a strain softening model....Pages 471-490
Advances in modelling soil anisotropy....Pages 491-521
Examples of finite element calculations with the hypoplastic law....Pages 523-538
Hypoplastic simulation of complex loading paths....Pages 539-554
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