Nonlinear elasticity of incompatible surface growth

Lev Truskinovsky and Giuseppe Zurlo
Phys. Rev. E 99, 053001 – Published 3 May 2019

Abstract

Surface growth is a crucial component of many natural and artificial processes, from cell proliferation to additive manufacturing. In elastic systems surface growth is usually accompanied by the development of geometrical incompatibility, leading to residual stresses and triggering various instabilities. In a recent paper [G. Zurlo and L. Truskinovsky, Phys. Rev. Lett. 119, 048001 (2017)] we presented a linearized elasticity theory of incompatible surface growth, which provides a quantitative link between deposition protocols and postgrowth states of stress. Here we extend this analysis to account for both physical and geometrical nonlinearities of an elastic solid. This development reveals the shortcomings of the linearized theory, in particular its inability to describe kinematically confined surface growth and to account for growth-induced elastic instabilities.

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  • Received 18 January 2019

DOI:https://doi.org/10.1103/PhysRevE.99.053001

©2019 American Physical Society

Physics Subject Headings (PhySH)

  1. Physical Systems
Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Lev Truskinovsky1,* and Giuseppe Zurlo2,†

  • 1PMMH, Centre National de la Recherche Scientifique, UMR 7636, PSL, ESPCI, 10 rue de Vauquelin, 75231 Paris, France
  • 2School of Mathematics, Statistics and Applied Mathematics, NUI Galway, University Road, Galway, Ireland

  • *trusk@lms.polytechnique.fr
  • giuseppe.zurlo@nuigalway.ie

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Issue

Vol. 99, Iss. 5 — May 2019

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