REVIEW OF THE DEVELOPMENT OF CAP MODELS FOR GEOMATERIALS

Abstract eng:
The history of the development of CAP constitutive models is reviewed. These models provide a powerful, yet adaptable way of representing many aspects of the dynamic stress-strain behavior of geological materials. They have been extensively used for more than three decades to characterize soils and rocks as well as concrete. The modern series of CAP models, introduced in the early 1970’s as a result of government-sponsored university and corporate R&D technology, is based on the adaptation of several earlier models. The basic behavior of the early models is briefly discussed and compared, and the reasons for the introduction of CAP models are outlined. Many adaptations of the CAP model have been developed since the first model was introduced, and the salient features of some of these model extensions are also reviewed.

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