Prediction of trabecular bone failure parameters using a tissue failure criterion and muFE analysis

B. Rietbergen, van, W. Pistoia, D. Ulrich, H.W.J. Huiskes, P. Rüegsegger

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Abstract

We investigated if failure behavior of trabecular bone at the apparent level as measured in compression tests can be predicted from tissue loading conditions and a tissue yield criterion. Micro- finite element models of 5 bone specimens were made using a micro-CT scanner. The failure behavior of these specimens was measured in compression tests and simulated with non-linear micro- finite element analyses assuming elastic-perfectly plastic tissue yield behavior. It was found that the ultimate stress could be predicted within 15% of the measured values, the ultimate strain, however was underestimated by 35%-49%. Although a more realistic description of tissue yield behavior is likely necessary to improve agreement, it is concluded that the approach introduced here is feasible.
Original languageEnglish
Pages (from-to)98-101
JournalJournal of Computer Simulation and Modelling in Medicine
Volume1
Issue number2
Publication statusPublished - 2000

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