کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10431792 | 910226 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modelling and simulation of porcine liver tissue indentation using finite element method and uniaxial stress-strain data
ترجمه فارسی عنوان
مدل سازی و شبیه سازی بافتن بافت کبدی گوشتی با استفاده از روش المان محدود و داده های تنش-کششی یک طرفه
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کلمات کلیدی
بافت نرم، کبد، مشخصات مواد روش عنصر محدود انداختن،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی پزشکی
چکیده انگلیسی
We hypothesize that both compression and elongation stress-strain data should be considered for modeling and simulation of soft tissue indentation. Uniaxial stress-strain data were obtained from in vitro loading experiments of porcine liver tissue. An axisymmetric finite element model was used to simulate liver tissue indentation with tissue material represented by hyperelastic models. The material parameters were derived from uniaxial stress-strain data of compressions, elongations, and combined compression and elongation of porcine liver samples. in vitro indentation tests were used to validate the finite element simulation. Stress-strain data from the simulation with material parameters derived from the combined compression and elongation data match the experimental data best. This is due to its better ability in modeling 3D deformation since the behavior of biological soft tissue under indentation is affected by both its compressive and tensile characteristics. The combined logarithmic and polynomial model is somewhat better than the 5-constant Mooney-Rivlin model as the constitutive model for this indentation simulation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Biomechanics - Volume 47, Issue 10, 18 July 2014, Pages 2430-2435
Journal: Journal of Biomechanics - Volume 47, Issue 10, 18 July 2014, Pages 2430-2435
نویسندگان
Y.B. Fu, C.K. Chui,