SYMPOSIA PAPER Published: 01 January 1977
STP27378S

Dynamic Analysis of Crack Propagation and Arrest in the Double-Cantilever-Beam Specimen

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A simple one-dimensional analysis model was developed previously for rapid unstable crack propagation and arrest in wedge-loaded rectangular double-cantilever-beam (DCB) specimens. In this paper, the model is generalized to treat contoured specimens and machine-loading conditions. The development starts from the basic equations of the two-dimensional theory of elasticity with inertia forces included. Exploiting the beam-like geometry of the DCB specimen results in governing equations that are analogous to a variable-height Timoshenko beam partly supported by a generalized elastic foundation. These are solved by a finite-difference method. Crack propagation arrest results illustrating the effect of specimen geometry and loading conditions are described in the paper.

Author Information

Kanninen, MF
Applied Solid Mechanics Section, Battelle Columbus Laboratories, Columbus, Ohio
Popelar, C
Ohio State University, Columbus, Ohio
Gehlen, PC
Applied Solid Mechanics Section, Battelle Columbus Laboratories, Columbus, Ohio
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Details
Developed by Committee: E08
Pages: 19–38
DOI: 10.1520/STP27378S
ISBN-EB: 978-0-8031-4700-3
ISBN-13: 978-0-8031-0341-2