کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
874391 910336 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stress-controlled viscoelastic tensile response of bovine cornea
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی پزشکی
پیش نمایش صفحه اول مقاله
Stress-controlled viscoelastic tensile response of bovine cornea
چکیده انگلیسی

The viscoelastic response of bovine corneas was characterized using in vitro load-controlled uniaxial tension experiments. Specifically, two types of tests were employed: cycled ramp tests over a range of loading rates and creep tests over a range of hold stresses. Multiple replicates of each were used to quantify natural variability as well as mean trends. A preconditioning protocol was used to obtain a unique reference state before testing and to overcome the effects of non-physiological loading. A quasi-linear viscoelastic model incorporating a representation of the microstructure of the cornea was compared to the experimental results. For low stresses and moderate durations this model compares favorably, but overall the material displays non-linearities that cannot be represented within the quasi-linear framework.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Biomechanics - Volume 40, Issue 11, 2007, Pages 2367–2376
نویسندگان
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