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Analytical modeling of stresses in the wall of the human heart
Other Title(s)
نموذج تحليل الإجهادات داخل قلب الإنسان
Joint Authors
Bayyumi, Abd al-Mutaz
al-Alawi, Aziz
Source
al-Khwarizmi Engineering Journal
Issue
Vol. 5, Issue 2 (30 Jun. 2009), pp.66-71, 6 p.
Publisher
University of Baghdad al-Khwarizmi College of Engineering
Publication Date
2009-06-30
Country of Publication
Iraq
No. of Pages
6
Main Subjects
Topics
Abstract AR
الحركة الميكانيكية للقلب، مسيطرة بالخاصيات التقلصية للخلايا، الصلادة الميكانيكية للعضلات و النسيج الرابط و ضغط و حجم الحمل على العضو بالرغم من أن ضغط و حجم البطين متوفرة لتقييم أداء الدفع الكلي للقلب، لكن توزيع الجهد و التوتر (strain, stress) التي توصف وظيفة البطين موضوعيا و التغيير في حيوية الخلية يجب أن تعرف.
ان ميكانيكية المنطقة القلبية للبيطين تمثل بالأسطوانة السمكية الجدران و علي هذه الفرضية تم حساب الجهد المحيطي و الجهد الاشعاعي و جهد الطول في جدار القلب.
خلال تقليص و انقباض القلب يتكون جهد لي Torsion stress في الجدار إضافة وجود جهد قص Shear stress في جدار لقلب لعمل الضغط على الأسطح المقوس في البطين.
Abstract EN
The mechanical function of the heart is governed by the contractile properties of the cells, the mechanical stiffness of the muscle and connective tissue, and pressure and volume loading conditions on the organ.
Although ventricular pressures and volumes are available for assessing the global pumping performance of the heart, the distribution of stress and strain that characterize regional ventricular function and change in cell biology must be known.
The mechanics of the equatorial region of the left, ventricle was modeled by a thick-walled cylinder.
The tangential (circumferential) stress, radial stress and longitudinal stress in the wall of the heart have been calculated.
There are also significant torsional shear in the wall during both systole and diastole.
In addition there should exist shear stress in the wall of the heart due to action of pressure on the curved surface.
American Psychological Association (APA)
Bayyumi, Abd al-Mutaz& al-Alawi, Aziz. 2009. Analytical modeling of stresses in the wall of the human heart. al-Khwarizmi Engineering Journal،Vol. 5, no. 2, pp.66-71.
https://search.emarefa.net/detail/BIM-333851
Modern Language Association (MLA)
Bayyumi, Abd al-Mutaz& al-Alawi, Aziz. Analytical modeling of stresses in the wall of the human heart. al-Khwarizmi Engineering Journal Vol. 5, no. 2 (2009), pp.66-71.
https://search.emarefa.net/detail/BIM-333851
American Medical Association (AMA)
Bayyumi, Abd al-Mutaz& al-Alawi, Aziz. Analytical modeling of stresses in the wall of the human heart. al-Khwarizmi Engineering Journal. 2009. Vol. 5, no. 2, pp.66-71.
https://search.emarefa.net/detail/BIM-333851
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 70
Record ID
BIM-333851