A non-parametric algebraic procedure for the identification of a generalized Standard Linear Solid (SLS) fractional material model, starting from E(w) complex modulus experimentally estimated values in wide frequency range, is proposed. The complex modulus is experimentally estimated from within forced excitation dynamical measurements in the high [f1, f2] frequency range and from relaxation creep measurements in the [0, f1] frequency range. The proposed model identification procedure is able to find the SLS model order and the parameters associated to each SLS element, including the local fractional differentiation order. The proposed identification approach is validated by means of some numerically simulated test cases from a known material model test case. The identification of the optimal equivalent material model of some experimentally tested polymeric materials, to be used in vibration damping coating applications, is also presented.

Amadori S, Catania G (2023). IDENTIFICATION OF A FRACTIONAL SLS MATERIAL MODEL BY MEANS OF DYNAMIC AND QUASI-STATIC MEASUREMENTS.

IDENTIFICATION OF A FRACTIONAL SLS MATERIAL MODEL BY MEANS OF DYNAMIC AND QUASI-STATIC MEASUREMENTS

Amadori S
Co-primo
Membro del Collaboration Group
;
Catania G
Co-primo
Conceptualization
2023

Abstract

A non-parametric algebraic procedure for the identification of a generalized Standard Linear Solid (SLS) fractional material model, starting from E(w) complex modulus experimentally estimated values in wide frequency range, is proposed. The complex modulus is experimentally estimated from within forced excitation dynamical measurements in the high [f1, f2] frequency range and from relaxation creep measurements in the [0, f1] frequency range. The proposed model identification procedure is able to find the SLS model order and the parameters associated to each SLS element, including the local fractional differentiation order. The proposed identification approach is validated by means of some numerically simulated test cases from a known material model test case. The identification of the optimal equivalent material model of some experimentally tested polymeric materials, to be used in vibration damping coating applications, is also presented.
2023
Proceedings of the 20th International Conference on Experimental Mechanics Track B: Analytical and Numerical Models
215
224
Amadori S, Catania G (2023). IDENTIFICATION OF A FRACTIONAL SLS MATERIAL MODEL BY MEANS OF DYNAMIC AND QUASI-STATIC MEASUREMENTS.
Amadori S; Catania G
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/957915
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact