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Oblique wrinkles.

M Carfagna1, M Destrade2,3, A L Gower4,5

  • 1Dipartimento di Scienze Matematiche DISMA G. L. Lagrange, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|April 5, 2017
PubMed
Summary
This summary is machine-generated.

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Theoretical analysis reveals that soft solids under extreme deformation can form oblique wrinkles. These wrinkles appear at lower strains than normal wrinkles but are unlikely to be observed experimentally.

Area of Science:

  • Materials Science
  • Solid Mechanics
  • Theoretical Physics

Background:

  • Soft solids can exhibit surface instabilities like wrinkling under deformation.
  • Understanding these instabilities is crucial for predicting material behavior and designing novel applications.

Purpose of the Study:

  • To theoretically investigate the formation of oblique wrinkles in soft solids under extreme deformation.
  • To compare the strain conditions for oblique versus normal wrinkle formation.
  • To provide insights into the experimental observability of these oblique wrinkles.

Main Methods:

  • Theoretical modeling of soft solid deformation.
  • Mathematical analysis of surface instability criteria.
  • Comparison of critical strain thresholds for different wrinkle orientations.
Keywords:
coated half-spaceincremental stabilitywrinkling

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Main Results:

  • Oblique wrinkles can form at smaller strains than wrinkles oriented normal to compression.
  • The theoretical framework predicts the conditions for oblique wrinkle emergence.
  • Factors limiting the experimental observation of these predicted wrinkles are identified.

Conclusions:

  • Oblique wrinkles are a theoretically possible instability in soft solids.
  • Their formation occurs under specific, potentially difficult-to-achieve experimental conditions.
  • Further research may be needed to explore methods for observing these phenomena.