کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7206933 | 1469060 | 2018 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Scaling effect on the fracture toughness of bone materials using MMTS criterion
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کلمات کلیدی
MMTSMTSKICMaximum tangential stressDCBSENBG12 - G12Size effect - اثر اندازهBone - استخوان Tangential stress - استرس تنشfracture load - بار شکستگیApplied load - بار کاربردیCompact tension - تنش فشردهOrthotropic media - رسانه های ارتوتروپیکSample thickness - ضخامت نمونهCritical distance - فاصله بحرانیDouble cantilever beam - پرتو دو کانالFracture toughness - چگرمگی شکست یا تافنِس شکست
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی پزشکی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The aim of this study is to present a stress based approach for investigating the effect of specimen size on the fracture toughness of bone materials. The proposed approach is a modified form of the classical fracture criterion called maximum tangential stress (MTS). The mechanical properties of bone are different in longitudinal and transverse directions and hence the tangential stress component in the proposed approach should be determined in the orthotropic media. Since only the singular terms of series expansions were obtained in the previous studies, the tangential stress is measured from finite element analysis. In this study, the critical distance is also assumed to be size dependent and a semi-empirical formulation is used for describing the size dependency of the critical distance. By comparing the results predicted by the proposed approach and those reported in the previous studies, it is shown that the proposed approach can predict the fracture resistance of cracked bone by taking into account the effect of specimen size.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Mechanical Behavior of Biomedical Materials - Volume 85, September 2018, Pages 72-79
Journal: Journal of the Mechanical Behavior of Biomedical Materials - Volume 85, September 2018, Pages 72-79
نویسندگان
Javad Akbardoost, Reza Amirafshari, Omid Mohsenzade, Filippo Berto,