English

Energy scaling law for the regular cone

Analysis of PDEs 2016-03-23 v2

Abstract

We consider a thin elastic sheet in the shape of a disk whose reference metric is that of a singular cone. I.e., the reference metric is flat away from the center and has a defect there. We define a geometrically fully nonlinear free elastic energy, and investigate the scaling behavior of this energy as the thickness hh tends to 0. We work with two simplifying assumptions: Firstly, we think of the deformed sheet as an immersed 2-dimensional Riemannian manifold in Euclidean 3-space and assume that the exponential map at the origin (the center of the sheet) supplies a coordinate chart for the whole manifold. Secondly, the energy functional penalizes the difference between the induced metric and the reference metric in LL^\infty (instead of, as is usual, in L2L^2). Under these assumptions, we show that the elastic energy per unit thickness of the regular cone in the leading order of hh is given by Ch2loghC^*h^2|\log h|, where the value of CC^* is given explicitly.

Keywords

Cite

@article{arxiv.1502.07013,
  title  = {Energy scaling law for the regular cone},
  author = {Heiner Olbermann},
  journal= {arXiv preprint arXiv:1502.07013},
  year   = {2016}
}

Comments

26 pages, Sections 1 and 2 rearranged, introduction streamlined

R2 v1 2026-06-22T08:37:12.603Z