Rheologic Behavior of Cohesionless Soils Subjected to Dynamic Loads

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Abstract
An effort is made in this state-of-the-art paper to present a representative sample of the experimentally observed rheologic response characteristics of cohesionless soils subjected to dynamic loadings, both with and without inertial effects, and to evaluate the usefulness of various idealized continuum and particulate theories for describing this response. Following brief discussion of some fundamental stress-strain-strength characteristics of cohesionless soils, their general behavior under dynamic loads is discussed. Then, their dynamic response is conveniently divided into two categories: reduction in volume and constitutive properties, and each is examined in some detail. The former includes conditions, such as compaction and liquefaction, which are associated with gross alterations in the soil structure; the latter is concerned with the stress-strain relation, hysteretic response, and wave propagation characteristics of the soil throughout the range of deformation encountered. Particular emphasis is given to distinguishing between small-strain and large-strain response and the approximations which are acceptable for each case.

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