期刊
ENGINEERING FRACTURE MECHANICS
卷 86, 期 -, 页码 56-72出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2012.02.015
关键词
PMMA; Theory of Critical Distances; Finite Fracture Mechanics; Notch; Apparent fracture toughness
类别
资金
- Spanish Ministry of Science and Innovation [MAT2009-08141]
The Theory of Critical Distances is actually a group of methodologies, all of them using a characteristic material length parameter when performing fracture assessments on any kind of stress risers. In this paper, the application of the Theory of Critical Distances on Polymethyl methacrylate is analysed, the parameters involved in the analysis are calibrated, and the different versions of this theory are applied, with satisfactory results, to the prediction of the notch effect on the apparent fracture toughness measured on notched specimens. Also, a Scanning Electron Microscopy analysis is performed, establishing relations between the fracture mechanisms and the predictions provided by the Theory of Critical Distances. (c) 2012 Elsevier Ltd. All rights reserved.
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