کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5018090 1467037 2017 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A family of hyperelastic models for human brain tissue
ترجمه فارسی عنوان
یک خانواده از مدل های پراکنده برای بافت مغز انسان
کلمات کلیدی
مکانیک مغز، بیش فعالی، تغییر شکل بزرگ، بارگذاری ترکیبی مدل سازی پایه،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی

Experiments on brain samples under multiaxial loading have shown that human brain tissue is both extremely soft when compared to other biological tissues and characterized by a peculiar elastic response under combined shear and compression/tension: there is a significant increase in shear stress with increasing axial compression compared to a moderate increase with increasing axial tension. Recent studies have revealed that many widely used constitutive models for soft biological tissues fail to capture this characteristic response. Here, guided by experiments of human brain tissue, we develop a family of modeling approaches that capture the elasticity of brain tissue under varying simple shear superposed on varying axial stretch by exploiting key observations about the behavior of the nonlinear shear modulus, which can be obtained directly from the experimental data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Mechanics and Physics of Solids - Volume 106, September 2017, Pages 60-79
نویسندگان
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