The analysis of structures with uncertain properties modeled as random variables with imprecise Probability Density Function (PDF) characterized by interval basic parameters (mean-value, variance, etc.) is addressed. A novel procedure able to provide approximate explicit expressions of the bounds of the interval mean-value and variance of the random stresses is proposed. The procedure stems from the joint application of the Improved Interval Analysis via Extra Unitary Interval and the Rational Series Expansion, introduced in the literature by the last two authors. The influence of imprecision of the PDF of the input parameters on structural performance is also investigated. For validation purposes, a 3D truss structure with uncertain Young's moduli is analyzed.

Analysis of structural performance in the framework of imprecise probabilities

Muscolino G.
Primo
;
Giunta F.
Secondo
;
Sofi A.
Ultimo
2019-01-01

Abstract

The analysis of structures with uncertain properties modeled as random variables with imprecise Probability Density Function (PDF) characterized by interval basic parameters (mean-value, variance, etc.) is addressed. A novel procedure able to provide approximate explicit expressions of the bounds of the interval mean-value and variance of the random stresses is proposed. The procedure stems from the joint application of the Improved Interval Analysis via Extra Unitary Interval and the Rational Series Expansion, introduced in the literature by the last two authors. The influence of imprecision of the PDF of the input parameters on structural performance is also investigated. For validation purposes, a 3D truss structure with uncertain Young's moduli is analyzed.
2019
119671250195530
File in questo prodotto:
File Dimensione Formato  
Muscolino Analysis ....pdf

solo utenti autorizzati

Tipologia: Versione Editoriale (PDF)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 666.76 kB
Formato Adobe PDF
666.76 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

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/11570/3169458
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? ND
social impact