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Analysis of axial prestretch in the abdominal aorta with reference to post mortem interval and degree of atherosclerosis
(Elsevier Science, 2014)
It is a well-known fact that the length of an artery in situ and the length of an excised artery differs. Retraction of blood vessels is usually observed. This prestretch plays an important role in arterial physiology. ...
Effect of axial prestretch on inflation instability in finitely extensible thin-walled tube
(Czech Technical University - Fac. of Mechanical Engineering, 2014)
Mechanical response of elastic materials undergoing large deformations exhibit several kinds of a loss of stability. Such a situation may occur, for instance, when a thin-walled cylinder is inflated by an internal pressure. ...
Preservation of tangent modulus of pericardial tissue during cold storage
(Taylor & Francis, 2013)
We have performed uniaxial tensile tests with human pericardium in order to identify the effect of a storage time on the passive mechanical response. Mechanical response was modelled using simple Fung´s type form of the ...
Axial prestretch and circumferential distensibility in biomechanics of abdominal aorta
(Springer, 2014)
Our study presents the results of an
analytical simulation of the inflation-extension behaviour of the human abdominal aorta
treated as nonlinear, anisotropic, prestrained thin-walled as well as thick-walled tube
with ...
Age-related changes in longitudinal prestress in human abdominal aorta
(Springer Science+Business Media, 2013)
Studies on the influence of aging on the longitudinal mechanical response of elastic arteries are rare, though longitudinal behavior may have a significant effect on pressure pulse transmission. Our study was designed to ...
How does axial prestretching change the mechanical response of nonlinearly elastic incompressible thin-walled tubes
(Elsevier B.V., 2016)
An analytical model of an incompressible thin-walled closed tube was used to simulate the mechanical response of an initially prestretched tube to internal pressure. Four different situations were considered: (I) a ...
Limiting extensibility constitutive model with distributed fibre orientations and ageing of abdominal aorta
(Elsevier Science, 2014)
Our study investigates three hyperelastic nonlinear constitutive descriptions for inflation-extension behavior of human aorta in the context of aging. The new, finitely extensible anisotropic model with the dispersion of ...
Constitutive modeling of human saphenous veins at overloading pressures
(Elsevier Science, 2015)
In the present study, inflation tests with free axial extension of 15 human vena saphena magna were conducted ex vivo to obtain data suitable for multi-axial constitutive modeling at overloading conditions (pressures up ...
Limit point instability in pressurization of anisotropic finitely extensible hyperelastic thin-walled tube
(Elsevier Science Publishers B.V., 2015)
Mechanical responses of materials undergoing large elastic deformations can exhibit a loss of stability in several ways. Such a situation can occur when a thin-walled cylinder is inflated by an internal pressure. The loss ...
The sustainable release of Vancomycin and its degradation products from nanostructured collagen/hydroxyapatite composite layers
(Elsevier B.V., 2016)
Infections of the musculoskeletal system present a serious problem with regard to the field of orthopaedic and trauma medicine. The aim of the experiment described in this study is to develop a resorbable nanostructured ...