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Article Dans Une Revue Archive of Applied Mechanics Année : 2019

Equilibrium unzipping at finite temperature

Résumé

We study thermally activated unzipping, which is modeled as a debonding process. The system is modeled as a parallel bundle of elastically interacting breakable units loaded through a series spring. Using equilibrium statistical mechanics, we compute the reversible response of this mechanical system under quasi-static driving. Depending on the stiffness of the series spring, the system exhibits either ductile behavior, characterized by noncoopera-tive debonding, or brittle behavior, with a highly correlated detachment of the whole bundle. We show that the ductile to brittle transition is of the second order and that it can also be controlled by temperature.
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Dates et versions

hal-02415217 , version 1 (17-12-2019)

Identifiants

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Hudson Borja da Rocha, Lev Truskinovsky. Equilibrium unzipping at finite temperature. Archive of Applied Mechanics, 2019, 89 (3), pp.535-544. ⟨10.1007/s00419-018-1485-4⟩. ⟨hal-02415217⟩
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