Identification of random material properties from monitoring of structures using stochastic chaos

Franck Schoefs (1) , Humberto Yáñez-Godoy (1) , Anthony Nouy (1)

1 GeM - Institut de Recherche en Génie Civil et Mécanique

The modeling of in service behavior is of first importance when planning the maintenance of structures and when performing risk analysis. To this aim the monitoring of structures in view to assess the level of loading and the displacements offers the opportunity to compare the measured quantities to those expected. Two on-piles wharf have been monitored in the Nantes Saint-Nazaire harbors. The paper focuses on one of them. The stochastic modeling of tide loading is focuses on. A mechanical modeling is presented in view to identify mechanical parameters. An original method based both on polynomial chaos decomposition and maximum likelihood estimate is applied.

Domaines: Mécanique [physics.med-ph]; Matériaux

Franck Schoefs, Humberto Yáñez-Godoy, Anthony Nouy. Identification of random material properties from monitoring of structures using stochastic chaos. 10th International Conference on Applications of Statistics and Probability in Civil Engineering, 2007, Tokyo, Japan. ⟨hal-01008274⟩