期刊
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
卷 4, 期 8, 页码 1764-1773出版社
ELSEVIER
DOI: 10.1016/j.jmbbm.2011.05.033
关键词
Bone; Fracture characterization; Mode II; End loaded split test
资金
- Portuguese Foundation for Science and Technology (FCT) [PDTC/EME/PME/71273/2006]
Fracture energy release rate under mode II loading of bovine cortical bone is determined using a miniaturized testing device of the end loaded split test. The energy release rate is evaluated by means of a data reduction scheme based on specimen compliance, beam theory and crack equivalent concept. Experimental tests were carried out to evaluate the Resistance curve which provides a successful method to characterize fracture behavior of quasi-brittle materials like bone. A numerical analysis including a cohesive damage model was used to validate the procedure. It was demonstrated that the end loaded split test and proposed data reduction scheme provide a valuable solution for mode II fracture characterization of bone. (C) 2011 Elsevier Ltd. All rights reserved.
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