SYMPOSIA PAPER Published: 01 January 1977
STP27385S

Effect of Poisson's Ratio on Crack Propagation and Arrest in the Double-Cantilever-Beam Specimen

Source

A recently proposed finite difference scheme for treating fast propagation and arrest in the double-cantilever-beam (DCB) specimen, which has so far yielded satisfactory results when compared with experimental measurements related to steel and epoxy resin, is here applied to a variety of materials, distinguished in the analysis by their Poisson's ratio only. It is shown that higher Poisson's ratios imply higher ratios between the initiating stress intensity factor and the dynamic material toughness when the same amount of crack growth is considered. The relation between the crack length at arrest and the crack speed, with the latter given with respect to the shear wave velocity, was found to be essentially independent of changes in the material when geometrically similar DCB configurations are considered.

Author Information

Shmuely, M
Faculty of Mechanical Engineering, Technion-Israel Institute of Technology, Haifa, Israel
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Developed by Committee: E08
Pages: 135–141
DOI: 10.1520/STP27385S
ISBN-EB: 978-0-8031-4700-3
ISBN-13: 978-0-8031-0341-2