We all know how difficult it is to unscrew a rusty bolt due to the expanded rusted volume. Possible explanation is:

- rust is 6 times in volume of the material loss, hence more material is available at the interfacial contact, hence increasing the friction between contacts.

I was wondering how to modify the interfacial properties in the similar manner if interfacial corrosion is to be modelled in ABAQUS?

Open to ideas.

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