Wrinkling on irreversibly deforming foundations

Wrinkling is a mechanical instability occurring in multi-layer structures comprising a thin and stiff layer resting on a supporting underlying compliant layer. The present study is motivated by experimental observations of wrinkling leading to irreversible deformation and to the initiation of defect...

Full description

Saved in:
Bibliographic Details
Published in:Thin solid films 2012-06, Vol.520 (17), p.5671-5682
Main Authors: Srinivasan, K., Subbarayan, G., Siegmund, T.
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Damage
Defects
Deformation
Delamination
Exact sciences and technology
Foundations
Mathematical models
Mechanical and acoustical properties
Multilayers
Nonlinear Foundation Response
Nonlinearity
Physical properties of thin films, nonelectronic
Physics
Plasticity
Spectral Method
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
Thin films
Wrinkling
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Wrinkling is a mechanical instability occurring in multi-layer structures comprising a thin and stiff layer resting on a supporting underlying compliant layer. The present study is motivated by experimental observations of wrinkling leading to irreversible deformation and to the initiation of defects. An incremental Spectral Method is employed to solve the governing differential equations. This approach enables the analysis of wrinkling processes non-linear foundations and under cyclic loading. Numerical simulation results are compared to a set of analytical solutions describing wrinkling events on nonlinear foundations. Wrinkling is analyzed for cases of elastic, elastic damageable, and elastic plastic foundations. The behavior of homogeneous foundation properties is contrasted to situations where local defects are present. ► We model wrinkling processes on foundations exhibiting irreversible deformation. ► An incremental Spectral Method is applied to simulation wrinkling processes. ► Closed form expressions for characteristic quantities are given. ► Wrinkling processes for checkerboard and herringbone pattern case are examined.
ISSN:0040-6090
1879-2731
DOI:10.1016/j.tsf.2012.04.071