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مجله رفتار مکانیکی مواد زیست پزشکی
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  • compressive behaviour of bovine cancellous bone and bone analogous materials, microct characterisation and fe analysis

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    • تاریخ ارائه: 1394/01/01
    • تاریخ انتشار در تی پی بین: 1394/01/01
    • تعداد بازدید: 676
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     compressive behaviour of bovine cancellous bone and three open-cell metallic foams (alsi7mg (30 ppi and 45 ppi); cusn12ni2 (30 ppi)) has been studied using mechanical testing, micro-focus computed tomography and finite element modelling. whilst the morphological parameters of the foams and the bone appear to be similar, the mechanical properties vary significantly between the foams and the bone. finite element models were built from the ct images of the samples and multi-linear constitutive relations were used for modelling of the bone and the foams. the global responses of the bone and foam samples were reasonably well captured by the fe models, whilst the percentage of yielded elements as a measure of damage evolution during compression seems to be indicative of the micro-mechanical behaviour of the samples. the damage evolution and distribution patterns across the bone and the foams are broadly similar for the strain range studied, suggesting possible substitution of trabecular bones with appropriate foams for biomechanical studies.

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