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Back stress in strain hardening of carbon nanotube/aluminum composites
Abstract : As demonstrated by the loading–unloading tests and the modeling of the grain size effect and the composite effect, mainly owing to the back stress induced by CNTs, carbon nanotube/aluminum (CNT/Al) composites exhibit higher strain hardening capability than the unreinforced ultrafine-grained Al matrix. The back stress induced by CNTs should arise from the interfacial image force and the long-range interaction between statically stored dislocations and geometrically necessary dislocations around the CNT/Al interface. Therefore, this CNT-induced interfacial back stress strengthening mechanism is supposed to provide a novel route to enhancing the strain hardening capability and ductility in CNT/Al composites.
Littérature citée [30 références]
https://hal.univ-lille.fr/hal-02318808
Contributeur : Lilloa Université de Lille <>
Soumis le : mardi 5 mai 2020 - 16:52:23
Dernière modification le : vendredi 17 juillet 2020 - 14:58:15
Contributeur : Lilloa Université de Lille <>
Soumis le : mardi 5 mai 2020 - 16:52:23
Dernière modification le : vendredi 17 juillet 2020 - 14:58:15
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