Structures with passive energy dissipation systems are characterized by a complex dynamic behavior due to the hysteretic nature governing the response of the adopted devices. Mathematically speaking, the hysteretic models currently available to simulate the behavior of rate-independent devices, such as metallic and friction dampers, are much more complicated than those developed for rate-dependent devices, such as viscous fluid and viscoelastic solid dampers. To allow for a straightforward, accurate and efficient modeling of rate-independent energy dissipation devices in practice, we introduce a novel phenomenological model suitable for both metallic and friction dampers. Such a model offers the advantage of requiring an easy calibration procedure since it is based on a set of only four parameters having a clear mechanical significance. The proposed model is employed to simulate the actual behavior of some metallic dampers, denominated Shear Links, that have been experimentally tested at the University of Naples Federico II. In addition, numerical simulations are performed to show the capability of such devices in protecting structures from earthquake excitations.
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