کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5013775 | 1463045 | 2017 | 41 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Calculation of the critical energy release rate Gc of the cement line in cortical bone combining experimental tests and finite element models
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Calculation of the critical energy release rate Gc of the cement line in cortical bone combining experimental tests and finite element models Calculation of the critical energy release rate Gc of the cement line in cortical bone combining experimental tests and finite element models](/preview/png/5013775.png)
چکیده انگلیسی
In this work, a procedure is proposed to estimate the critical energy release rate Gc of the so-called cement line in cortical bone tissue. Due to the difficulty of direct experimental estimations, relevant elastic and toughness material properties at bone microscale have been inferred by correlating experimental tests and finite element simulations. In particular, three-point bending tests of ovine cortical bone samples have been performed and modeled by finite elements. The initiation and growth of microcracks in the tested samples are simulated through finite elements using a damage model based on a maximum principal strain criterion, showing a good correlation with the experimental results. It is observed that microcracks evolve mainly along the cement lines and through the interstitial material but without crossing osteons. The numerical model allows the calculation of the cement line critical energy release rate Gc by approximating its definition by finite differences. This way, it is possible to estimate this property poorly documented in the literature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 184, 15 October 2017, Pages 168-182
Journal: Engineering Fracture Mechanics - Volume 184, 15 October 2017, Pages 168-182
نویسندگان
Eugenio Giner, Ricardo Belda, Camila Arango, Ana Vercher-MartÃnez, José E. Tarancón, F. Javier Fuenmayor,