Skip to Main content Skip to Navigation
Journal articles

Multi-scale reliability analysis of composite structures – Application to the Laroin footbridge

Abstract : This work aims at developing a new methodology for the reliability assessment of composite structures and their design optimization. It relies on the coupling of well established methods: homogenization scheme for the mechanical modelling of composite materials and reliability methods to account for their inherent variability. Moreover, such approach is based on an accurate treatment of inherent uncertainties of these mechanical systems at various scales, including microscopic and macroscopic levels, that provides newperspectives for structural design. As an illustration, we propose to apply the multi-scale reliability analysis on the case of the Laroin footbridge (France) with carbon–epoxy stay cables. Since the reliability assessment of such structure is evaluated through the fibre failure, numerical simulations require the coupling of reliability methods, finite element modelling to derive macroscopic loading within cables and micromechanics to estimate the effective elastic properties of composite and local responses within constituents. Results demonstrate the feasibility of the coupled approach at a structure scale and its main interests for the optimization phase of materials and engineering structures.
Complete list of metadata

Cited literature [11 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-00758888
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Thursday, November 29, 2012 - 3:08:03 PM
Last modification on : Monday, February 15, 2021 - 2:52:02 PM
Long-term archiving on: : Saturday, December 17, 2016 - 5:39:35 PM

File

Welemane_6577.pdf
Files produced by the author(s)

Identifiers

Citation

Hocine Dehmous, Hélène Welemane. Multi-scale reliability analysis of composite structures – Application to the Laroin footbridge. Engineering Failure Analysis, Elsevier, 2011, vol. 18, pp. 988-998. ⟨10.1016/j.engfailanal.2010.12.005⟩. ⟨hal-00758888⟩

Share

Metrics

Record views

181

Files downloads

392