Data-Driven Identification unravels multiaxial mechanical response of a carbon-black filled elastomer during ageing - l'unam - université nantes angers le mans
Journal Articles Polymer Testing Year : 2024

Data-Driven Identification unravels multiaxial mechanical response of a carbon-black filled elastomer during ageing

Abstract

Under environmental exposure, the mechanical properties of elastomers change due to ageing, all while enduring mechanical service loading conditions. The influence of ageing on the multiaxial mechanical response of elastomers remains an understudied question, lacking exploration in both experimental evidence and modelling proposals. The present study describes an experimental/numerical approach to characterize the multiaxial behaviour of elastomers with consideration of ageing. This technique associates complex experimental tests conducted with a hexapod device, with a Data-Driven Identification (DDI) algorithm. Practically, heterogeneous strain fields are measured by Digital Image Correlation (DIC), and the corresponding stress and energy fields are calculated by DDI. These fields are visualized through three-dimensional maps, encompassing kinematical quantities and strain energy density. These maps convincingly capture the stiffening induced by ageing, in different deformation modes. Finally, the coupling between ageing and multiaxiality is foregathered in a material database that can be fitted for further modelling purposes.
Fichier principal
Vignette du fichier
Madeira_et_al.pdf (2.89 Mo) Télécharger le fichier
Origin Publication funded by an institution

Dates and versions

hal-04691635 , version 1 (09-09-2024)

Identifiers

Cite

H. Madeira, L. Costecalde, Michel Coret, A. Leygue, Pierre Yves Le Gac, et al.. Data-Driven Identification unravels multiaxial mechanical response of a carbon-black filled elastomer during ageing. Polymer Testing, 2024, 137, pp.108521. ⟨10.1016/j.polymertesting.2024.108521⟩. ⟨hal-04691635⟩
27 View
6 Download

Altmetric

Share

More