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arXiv · 2212.00010

Configurational Forces in Penetration Processes

Davide Bigoni·Marco Amato·Francesco Dal Corso
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Abstract

With a loose reference to problems of penetration in biomechanics (for instance, a nanoparticle penetrating through a cell's membrane or a cell sucked with a pipette), the role of configurational forces is investigated during the process in which a compliant intruder is inserted into an elastic structure. For insertion into a rigid constraint, a configurational force proportional to the square of the strain needed to deform the body, which is penetrating, is found. This force has a more complex structure when the compliance of the constraint is kept into account, but in all cases, it tends to expel the penetrating body.

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Davide Bigoni, Marco Amato, Francesco Dal Corso. 2022-11-22. Configurational Forces in Penetration Processes. https://arxiv.org/abs/2212.00010

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