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An asymptotic numerical method for inverse elastic shape design

Published: 27 July 2014 Publication History

Abstract

Inverse shape design for elastic objects greatly eases the design efforts by letting users focus on desired target shapes without thinking about elastic deformations. Solving this problem using classic iterative methods (e.g., Newton-Raphson methods), however, often suffers from slow convergence toward a desired solution. In this paper, we propose an asymptotic numerical method that exploits the underlying mathematical structure of specific nonlinear material models, and thus runs orders of magnitude faster than traditional Newton-type methods. We apply this method to compute rest shapes for elastic fabrication, where the rest shape of an elastic object is computed such that after physical fabrication the real object deforms into a desired shape. We illustrate the performance and robustness of our method through a series of elastic fabrication experiments.

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cover image ACM Transactions on Graphics
ACM Transactions on Graphics  Volume 33, Issue 4
July 2014
1366 pages
ISSN:0730-0301
EISSN:1557-7368
DOI:10.1145/2601097
Issue’s Table of Contents
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Publication History

Published: 27 July 2014
Published in TOG Volume 33, Issue 4

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Author Tags

  1. 3D printing
  2. elastic fabrication
  3. finite element methods
  4. nonlinear optimization

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