At a relatively large earthquake ground acceleration, the response of structure is no longer elastic but already in inelastic phase where hysteretic energy one elements content. In this phase, structural damage can not be avoided and generally expressed term index DI. Studies on contribution normalization to SDOF have been carried out. The behavior simulated according Modified Takeda model. stu...

Abstract. We provide closed-form expressions to compute the path-dependent work performed by generalized rate-independent hysteretic forces, simulated using a brand-new model denominated Vaiana-Rosati Model (VRM). In particular, such are valid over generic displacement interval. Furthermore, we expression for evaluating dissipated energy associated with done force when full cycle of periodic is...

– Granular material is vibro-fluidized in N = 2 and N = 3 connected compartments, respectively. For sufficiently strong shaking the granular gas is equi-partitioned, but if the shaking intensity is lowered, the gas clusters in one compartment. The phase transition towards the clustered state is of 2nd order for N = 2 and of 1st order for N = 3. In particular, the latter is hysteretic. The exper...

this paper presents an experimental study on seismic repair of damaged square reinforced concrete columns with poor lap splices, 90-degree hooks and widely spaced transverse bars in plastic hinge regions according to aci detailing (pre.1971) and (318-02) using gfrp wraps. three specimens were tested in “as built” condition and retested after they were repaired by glass fiberreinforced plastic s...

In this paper, the finite element simulation software ABAQUS was used to study hysteretic performance of Q690 high-strength steel (HSS) and high-web box-section columns. The model established by solid elements, influence initial defects materials on specimen considered. hyteretic conducted analyzing comparing width-thickness ration flanges webs. results show that increase ratios webs will reduc...

This paper aims to study the efficiency of energy dissipators, both fluid viscous and hysteretic, improve seismic responses buildings. To quantify ability dissipators reduce responses, a series time history analyzes were carried out on simplified models Said consist masses springs with linear elastic behavior whose properties are obtained from shear beam model, joined by link elements non-linea...

A b s t r a c t Hysteresis is usually characterized as a memorydependent relationship between inputs and outputs. While various operator models have been proposed, it is often convenient for engineering applications to approximate hysteretic behavior by means of finite-dimensional differential models. In the present paper we show that step-convergent semistable systems (that is, semistable syst...

From our investigation of magnetoelectric properties of a multiferroic phase in Eu0.75Y0.25MnO3 competing with a weak-ferromagnetic phase in magnetic fields, we found intriguing hysteretic behaviors of physical properties with variation of temperature and magnetic field. These hysteretic behaviors arise from the kinetic arrest (dearrest) processes of the first-order multiferroic-weak-ferromagne...