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**A kinematic hardening constitutive model for sands: The multiaxial formulation.**
*(English)*
Zbl 0943.74040

From the summary: This paper explores the possibility of using well-accepted concepts – Mohr-Coulomb-like strength criterion, critical state, existence of a small-strain elastic region, hyperbolic relationship for representing global plastic stress-strain behaviour, dependence of strength on state parameter and flow rules derived from the Cam-Clay model – to represent the general multiaxial stress-strain behaviour of granular materials over the full range of void ratios and stress level (neglecting grain crushing). The result is a simple model based on bounding surface and kinematic hardening plasticity, which is based on a single set of constitutive parameters, namely two for the elastic behaviour plus eight for the plastic behaviour, which all have a clear physical meaning.

### MSC:

74L10 | Soil and rock mechanics |

74E20 | Granularity |

74C05 | Small-strain, rate-independent theories of plasticity (including rigid-plastic and elasto-plastic materials) |

### Keywords:

multiaxial space; simple shear; invariants; sand; Mohr-Coulomb strength criterion; small-strain elastic region; global plastic stress-strain behaviour; Cam-Clay model; kinematic hardening plasticity### References:

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