Implicit and explicit finite element models predict the mechanical response of calcium phosphate-titanium cranial implants
Journal of the Mechanical Behavior of Biomedical Materials(2020)
摘要
The structural integrity of cranial implants is of great clinical importance, as they aim to provide cerebral protection after neurosurgery or trauma. With the increased use of patient-specific implants, the mechanical response of each implant cannot be characterized experimentally in a practical way. However, computational models provide an excellent possibility for efficiently predicting the mechanical response of patient-specific implants. This study developed finite element models (FEMs) of titanium-reinforced calcium phosphate (CaP–Ti) implants. The models were validated with previously obtained experimental data for two different CaP–Ti implant designs (D1 and D2), in which generically shaped implant specimens were loaded in compression at either quasi-static (1 mm/min) or impact (5 kg, 1.52 m/s) loading rates.
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关键词
Mechanical properties,Cranial implant,Bioceramics,Computational models,Impact
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