contributor author | E. Denny | |
contributor author | R. C. Schroter | |
date accessioned | 2017-05-08T23:46:37Z | |
date available | 2017-05-08T23:46:37Z | |
date copyright | August, 1995 | |
date issued | 1995 | |
identifier issn | 0148-0731 | |
identifier other | JBENDY-25954#254_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/114976 | |
description abstract | A model for the mechanical properties of an alveolar duct is analyzed using the finite element method. Its geometry comprises an assemblage of truncated octahedral alveoli surrounding a longitudinal air duct. The amounts and distributions of elastin and collagen fiber bundles, modeled by separate stress-strain laws, are based upon published data for dogs. The surface tension of the air-liquid interface is modeled using an area-dependent relationship. Pressure-volume curves are computed that compare well with experimental data for both saline-filled and air-filled lungs. Pressure-volume curves of the separate elastin and collagen fiber contributions are similar in form to the behavior of saline-filled lungs treated with either elastase or collagenase. A comparison with our earlier model, based upon a single alveolus, shows the duct to have a behavior closer to reported experimental data. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | The Mechanical Behavior of a Mammalian Lung Alveolar Duct Model | |
type | Journal Paper | |
journal volume | 117 | |
journal issue | 3 | |
journal title | Journal of Biomechanical Engineering | |
identifier doi | 10.1115/1.2794178 | |
journal fristpage | 254 | |
journal lastpage | 261 | |
identifier eissn | 1528-8951 | |
keywords | Mechanical behavior | |
keywords | Ducts | |
keywords | Lung | |
keywords | Pressure | |
keywords | Fibers | |
keywords | Stress | |
keywords | Finite element methods | |
keywords | Mechanical properties | |
keywords | Surface tension AND Geometry | |
tree | Journal of Biomechanical Engineering:;1995:;volume( 117 ):;issue: 003 | |
contenttype | Fulltext | |