misc
teaching
- Slender structures (MEC 553), Ecole Polytechnique
- Petites classes de Fluides-structures (MEC 561), Ecole Polytechnique
- Petites classes de Mécanique des milieux continus (MEC 431), Ecole Polytechnique
- Tutorats de mécanique, EPSCI
publications
My research interests are mainly nonlinear mechanics, buckling, rods, plates and shells theoriesAnalysis of necking based on a one-dimensional model

B. Audoly and J. W. Hutchinson. Journal of the Mechanics and Physics of Solids, to appear, 2015.
Derivation of a one-dimensional model describing the necking of prismatic solids, and analysis of the model. Both nonlinearly elastic materials displaying a maximum load on their traction curve, and elasto-plastic materials are studied.
Untangling the mechanics and topology in the frictional response of long overhand elastic knots

Liquid ropes: a geometrical model for thin viscous jet instabilities

Dynamic curling of an Elastica: a nonlinear problem in elastodynamics solved by matched asymptotic expansions

B. Audoly, A. Callan-Jones, and P.-T. Brun. In D. Bigoni, editor, Extremely Deformable Structures, volume 562 of CISM International Centre for Mechanical Sciences, pages 137-155. Springer, 2015.
A detailed derivation of the solution for the dynamic curling of naturally curved, initially flat Elastica by matched asymptotic expansions, published in short form in Phys. Rev. Lett. (2012).
Buckling of naturally curved elastic strips: the ribbon model makes a difference

Introduction to the elasticity of rods

"Wunderlich, meet Kirchhoff": A general and unified description of elastic ribbons and thin rods

An introduction to the mechanics of the lasso

Furrow constriction in animal cell cytokinesis

Shapes of a suspended curly hair

A non-linear rod model for folded elastic strips

Solid drops: Large capillary deformations of immersed elastic rods

A discrete geometric approach for simulating the dynamics of thin viscous threads

B. Audoly, N. Clauvelin, P.-T. Brun, M. Bergou, E. Grinspun, and M. Wardetzky. Journal of Computational Physics, 253:18-49, 2013.
Direct simulations of thin viscous jets including the effect of bending, twisting, inertia and surface tension by a geometric method. Validation on helical coiling and demos of the viscous sewing machine.
Capillary buckling of a thin film adhering to a sphere

A numerical investigation of the fluid mechanical sewing machine

Self-similar curling of a naturally curved Elastica

Discrete viscous sheets

The shape of an elastic loop strongly bent by surface tension: experiments and comparison with theory

Instant fabrication and selection of folded structures using drop impact

A. Antkowiak, B. Audoly, C. Josserand, S. Neukirch, and M. Rivetti. Proceedings of the National Academy of Sciences, 108(26):10400-10404, 2011
When a drop impacts on a thin target, it gets wrapped in a dynamic sequence. Slightly varying the impact parameters allows for shape selection of the final 3D structure.
Linear and non-linear stability of floating viscous sheets

Thin viscous sheets with inhomogeneous viscosity

Localized buckling of a floating Elastica

B. Audoly, Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), 84(1), 2011
Analysis of the localization of buckling patterns for an Elastica floating on a bath of denser fluid, providing an interpretation of the experimental results of Pocivavsek et al. (Science, 2008)
Discrete viscous threads

Elasticity and geometry: from hair curls to the nonlinear response of shells (book)

B. Audoly and Y. Pomeau. Oxford University Press, 600 pages, july 2010
A book on the nonlinear elasticity of rods, plates and shells.
Matched asymptotic expansions for twisted elastic knots: a self-contact problem with non-trivial contact topology

N. Clauvelin, B. Audoly, and S. Neukirch. J. Mech. Phys. Sol. 57:1623-1656, 2009
Analytical calculation of the shape of knot on an elastic rod, including the effect of twist. Some experiments are presented.
Elasticity and electrostatics of plectonemic DNA

Mechanical response of plectonemic DNA: An analytical solution

Discrete elastic rods

Law of spreading of the crest of a breaking wave.

Buckling of a thin film bound to a compliant substrate (part 1). Formulation, linear stability of cylindrical patterns, secondary bifurcations

Buckling of a thin film bound to a compliant substrate (part 2). A global scenario for the formation of herringbone pattern

Buckling of a thin film bound to a compliant substrate (part 3). Herringbone solutions at large buckling parameter

Elastic knots

Super-helices for predicting the dynamics of natural hair

Fragmentation of rods by cascading cracks: Why spaghetti does not break in half

Cracks in thin sheets: When geometry rules the fracture path

Predicting natural hair shapes by solving the statics of flexible rods

Oscillatory fracture paths in thin elastic sheets

Self-similar structures near boundaries in strained systems

Correlation functions for inhomogeneous magnetic field in random media with application to a dense random pack of spheres

‘Ruban à godets’: an elastic model for ripples in plant leaves

The elastic torus: anomalous stiffness of shells with mixed type

Secondary buckling patterns of a thin plate under in-plane compression

Asymptotic study of the interfacial crack with friction

Mode-dependent toughness and the delamination of compressed thin films

Réaction-diffusion en écoulement stationnaire rapide

Elasticity and geometry (Chapter in book)

Stability of straight delamination blisters

Rigidifying curves on surfaces

PhD thesis
Elasticité et géométrie : de la rigidité des surfaces à la délamination en fil de téléphone
