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A Study on Length Scale Effects on Indentation Delamination of Thin Films

[+] Author Affiliations
W. Li, T. Siegmund

Purdue University

S. Qu, Y. Huang

University of Illinois at Urbana-Champaign

Paper No. IMECE2004-61160, pp. 427-431; 5 pages
doi:10.1115/IMECE2004-61160
From:
  • ASME 2004 International Mechanical Engineering Congress and Exposition
  • Applied Mechanics
  • Anaheim, California, USA, November 13 – 19, 2004
  • Conference Sponsors: Applied Mechanics Division
  • ISBN: 0-7918-4702-0 | eISBN: 0-7918-4178-2, 0-7918-4179-0, 0-7918-4180-4
  • Copyright © 2004 by ASME

abstract

Simulations of indentation delamination of ductile films on elastic substrates are performed. A cohesive zone model accounts for initiation and growth of interface delaminations and a strain gradient plasticity framework for the length scale dependence of plastic deformation. With the cohesive zone model and the strain gradient formulation two length scales are introduced in to the analysis.

Copyright © 2004 by ASME

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