کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10432184 | 910237 | 2012 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Quantitative assessment of the anisotropy of vocal fold tissue using shear rheometry and traction testing
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی پزشکی
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چکیده انگلیسی
The human vocal folds are layered structures with intrinsically anisotropic elastic properties. Most testing methods assume isotropic behavior. Biaxial testing of vocal folds is strictly difficult because the very soft tissue tends to delaminate under transverse traction loads. In the present study, a linear transversely isotropic model was used to characterize the tissue in-vitro. Shear rheometry was used in conjunction with traction testing to quantify the elasticity of porcine vocal fold tissue. Uniaxial traction testing along with optical measurements were used to obtain the longitudinal modulus. The alternate vocal fold of each animal was subjected to a test-specific sample preparation and concurrently tested using dynamic shear rheometry. The stiffness ratio (i.e., the ratio of the longitudinal modulus and the transverse modulus) varied between â¼5 and â¼7 at low frequencies. The proposed methodology can be applied to other soft tissues.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Biomechanics - Volume 45, Issue 16, 15 November 2012, Pages 2943-2946
Journal: Journal of Biomechanics - Volume 45, Issue 16, 15 November 2012, Pages 2943-2946
نویسندگان
Amir K. Miri, Rosaire Mongrain, Lei Xi Chen, Luc Mongeau,