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Strain rate and mineral content in fracture models of bone
Author(s) -
Currey J. D.
Publication year - 1988
Publication title -
journal of orthopaedic research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.041
H-Index - 155
eISSN - 1554-527X
pISSN - 0736-0266
DOI - 10.1002/jor.1100060105
Subject(s) - strain (injury) , strain rate , fracture (geology) , generality , yield (engineering) , modulus , bone mineral content , cortical bone , work (physics) , mineralogy , materials science , mathematics , composite material , geology , bone mineral , physics , psychology , thermodynamics , anatomy , biology , osteoporosis , psychotherapist , endocrinology
I reanalysed data from my previous work to determine the extent to which a model for the loading‐rate dependence of the fracture of cortical bone, put forward by Carter and Caler, fits this independently derived data set. In particular, the extent to which the generality of the model is vitiated by its ignoring the effect of mineralisation on strength was tested. The model was rather strongly corroborated. In addition, the reanalysed data show that yield strain is strongly strain‐rate dependent, but that Young's modulus is rather unvarying over physiological strain rates. The implication of this for hypotheses concerning fracture of bone are discussed.