Journal Published Online: 12 December 2014
Volume 44, Issue 3

Mode II Brittle Fracture Assessment of Key-Hole Notches by Means of the Local Energy

CODEN: JTEVAB

Abstract

Brittle fracture of key-hole notches under pure mode II loading is investigated both experimentally and theoretically. In the experimental part, a new version of the well-known Brazilian disk specimen containing a central dumbbell-shaped slit with two key-ends, called the Key-BD specimen, made of polymethyl-methacrylate (PMMA), is utilized to perform fracture experiments at room temperature for different notch lengths and various notch radii. In the theoretical part, the experimentally recorded fracture loads are predicted by means of the strain energy density (SED) averaged over a specified control volume, which embraces the notch edge. It is found that the SED criterion can successfully predict the test results.

Author Information

Torabi, A.
Fracture Research Laboratory, Faculty of New Science and Technologies, Univ. of Tehran, Tehran, IR
Campagnolo, A.
Dept. of Management and Engineering, Univ. of Padova, Stradella, S. Nicola, Vicenza, IT
Berto, F.
Dept. of Management and Engineering, Univ. of Padova, Stradella, S. Nicola, Vicenza, IT
Pages: 10
Price: $25.00
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Details
Stock #: JTE20140295
ISSN: 0090-3973
DOI: 10.1520/JTE20140295