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Communication Dans Un Congrès Année : 2011

A multi-scale study of residual stresses created during the cure process of a composite tooling material

Résumé

This paper deals with the cure of an in-plane isotropic carbon-polymer tooling material, with a complex microstructure [1]. The Mori-Tanaka (MT) and Eshelby-Kröner self-consistent (EKSC) models are used in order to achieve a two-steps scale transition procedure, relating the microscopic properties of the material to their macroscopic counterparts. This procedure enables estimating the multi-scale mechanical states experienced by the material, i.e. the local (microscopic) stresses due to thermal and chemical shrinkage of the resin, along a typical, macroscopic stress-free, cure process. The influence of the chosen scale transition model on both the calculated effective properties of the material and its local stress states, is investigated. These results are a first step for investigating the service life fatigue of the material, as well as its failure behaviour.
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Dates et versions

hal-01007763 , version 1 (17-06-2014)

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Citer

Emmanuel Lacoste, Sylvain Fréour, Frédéric Jacquemin. A multi-scale study of residual stresses created during the cure process of a composite tooling material. 8th European Conference on Residual Stresses (ECRS8), 2011, Riva del Garda, Italy. ⟨10.4028/www.scientific.net/MSF.681.309⟩. ⟨hal-01007763⟩

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