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TECHNICAL PAPERS

Modeling the Fracture of a Sandwich Structure due to Cavitation in a Ductile Adhesive Layer

[+] Author and Article Information
S. Zhang, K. J. Hsia

Department of Theoretical and Applied Mechanics, University of Illinois at Urbana-Champaign, Urbana, IL 61801

J. Appl. Mech 68(1), 93-100 (Jul 19, 2000) (8 pages) doi:10.1115/1.1346678 History: Received October 01, 1999; Revised July 19, 2000
Copyright © 2001 by ASME
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References

Figures

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Geometry of the spherically symmetric void in the initial and deformed states
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Stress versus void radius for the growth of a spherically symmetrical void; (a) effects of the initial radius of cavity, (b) effects of the material constant σY/E, (c) effects of the strain hardening exponent N
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Schematics of a cavitated ductile interface layer with periodic cavity distribution
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Unit cell model used in the two-dimensional void growth analysis
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Uniformity of the velocity field at the interface x=h0
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Stress-separation relations for two-dimensional void growth; (a) effects of the initial radius of cavity, (b) effects of the material constant σY/E, (c) effects of the strain-hardening exponent N
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Comparison of the stress-separation curves with Tvergaard and Hutchinson’s calculations
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Evolution of void shape for the two-dimensional case
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(a) Normalized initial fracture resistance versus the geometrical parameter G, (b) normalized initial fracture resistance versus the void volume fraction Vf, (c) normalized initial fracture resistance versus the strain-hardening exponent N

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