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TECHNICAL BRIEFS

On the Double Cantilever Beam Specimen for Mode-I Interface Delamination

[+] Author and Article Information
B. Balendran

Center of Excellence for Advanced Materials, Department of Advanced Materials, Department of Applied Mechanics and Engineering Sciences, University of California, San Diego, La Jolla, CA 92093-0411

J. Appl. Mech 61(2), 471-473 (Jun 01, 1994) (3 pages) doi:10.1115/1.2901470 History: Received August 30, 1991; Revised April 13, 1993; Online March 31, 2008

Abstract

A compliance model is presented for a DCB specimen for mode-I interface delamination. The undelaminated part of the specimen is modeled by using Reissner’s mixed variational principle from which the rotation of the cross-section at the tip of the crack and the shear stress at the interface are evaluated. The results for a homogeneous beam with midplane crack are deduced and shown to be in better agreement with the experimental and finite element results than any of the existing models.

Copyright © 1994 by The American Society of Mechanical Engineers
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