Skip to Main content Skip to Navigation
Journal articles

A critical discussion and practical recommendations on some issues relevant to the non-probabilistic treatment of uncertainty in engineering risk assessment

Abstract : Models for the assessment of the risk of complex engineering systems are affected by uncertainties, due to the randomness of several phenomena involved and the incomplete knowledge about some of the characteristics of the system. The objective of the present paper is to provide operative guidelines to handle some conceptual and technical issues related to the treatment of uncertainty in risk assessment for engineering practice. In particular, the following issues are addressed: (1) quantitative modeling and representation of uncertainty coherently with the information available on the system of interest; (2) propagation of the uncertainty from the input(s) to the output(s) of the system model; (3) (Bayesian) updating as new information on the system becomes available; (4) modeling and representation of dependences among the input variables and parameters of the system model. Different approaches and methods are recommended for efficiently tackling each of the issues (1)‒(4) above; the tools considered are derived from both classical probability theory as well as alternative, non-fully probabilistic uncertainty representation frameworks (e.g., possibility theory). The recommendations drawn are supported by the results obtained in illustrative applications of literature.
Complete list of metadatas

Cited literature [143 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01652230
Contributor : Zhiguo Zeng <>
Submitted on : Friday, March 20, 2020 - 7:23:08 PM
Last modification on : Monday, December 14, 2020 - 12:29:16 PM
Long-term archiving on: : Sunday, June 21, 2020 - 4:59:35 PM

File

192_A-Critical-Discussion-and-...
Files produced by the author(s)

Identifiers

Citation

Nicola Pedroni, Enrico Zio, Alberto Pasanisi, Mathieu Couplet. A critical discussion and practical recommendations on some issues relevant to the non-probabilistic treatment of uncertainty in engineering risk assessment. Risk Analysis, Wiley, 2017, 37 (7), pp.1315 - 1340. ⟨10.1111/risa.12705⟩. ⟨hal-01652230⟩

Share

Metrics

Record views

873

Files downloads

729