Istituto Nazionale di Fisica Nucleare, Sezione di Perugia

The α-Mooney–Rivlin model of hyperelasticity

Abstract We introduce the α-Mooney–Rivlin model, a three-parameter generalization of the classical Mooney–Rivlin law based on a new pair of α-dependent invariants for incompressible hyperelasticity. The model preserves the transparent two-term structure of the classical formulati...

Shape coexistence in 94Zr from a model-independent analysis

Low-lying states of 94Zr were investigated via low-energy multi-step Coulomb excitation. From the measured γ-ray yields, 16 reduced E2 transition probabilities between low-spin states were determined, together with the spectroscopic quadrupole moments of the 2+1,2 states. Based o...

A two-tier SHM framework for nonlinear identification of friction pendulum isolators in base-isolated buildings

This paper presents a structural health monitoring (SHM)–oriented framework for the nonlinear identification of friction pendulum isolators in a real base isolated school building. Based on a parametric investigation carried out for this study, which identifies the high-speed fri...

Stellar Interpretation of Meteoritic Data and PLotting for Everyone (SIMPLE): Isotope Mixing Lines for Six Sets of Core-collapse Supernova Models

Abstract Bulk meteorites and their inclusions exhibit, for many chemical elements, isotopic variability produced by nucleosynthetic events in stars and supernovae before the formation of the Sun. While the exact astrophysical origins of these variations are still a matter of deba...