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Paper Information

Journal:   SCIENTIA IRANICA   2014 , Volume 21 , Number 3 (TRANSACTIONS B: MECHANICAL ENGINEERING); Page(s) 620 To 627.
 
Paper: 

EFFECTS OF NON-UNIFORM WALL PROPERTIES ON STRESS DISTRIBUTION IN AN ABDOMINAL AORTIC ANEURYSM, CONSIDERING NONLINEAR CONSTITUTIVE EQUATIONS

 
 
Author(s):  ZENDEHBUDI G.R.*
 
* DEPARTMENT OF MECHANICAL ENGINEERING, YASOUJ UNIVERSITY, YASOUJ, IRAN
 
Abstract: 

In this study, stress distribution in the aneurismal wall of the abdominal aortic is addressed. Full equilibrium equations derived from the thick-wall theory are solved using the well-known Finite Element Method (FEM). Nine-node quadratic rectangular plane elements are employed for the spatial discretization of the computational domain. Nonlinear constitutive equations and non-uniform wall properties are taken into consideration. The results of this investigation show that in addition to the aneurysm size, some other factors may significantly affect stress distribution in aneurismal wall. Factors such as wall thickness, blood pressure and longitudinal tension have been identified for both uniform and non-uniform wall properties. Having numerically simulated different cases, it is demonstrated that longitudinal stress is the maximum stress in the wall, and it is not significantly affected by the uniformity of wall stiffness.

 
Keyword(s): FINITE ELEMENT METHOD, ANEURYSM RUPTURE, ANEURISMAL WALL, THICK-WALL THEORY, BLOOD PRESSURE, ABDOMINAL AORTIC ANEURYSM, NON-LINEAR CONSTITUTIVE EQUATION
 
 
References: 
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Click to Cite.
APA: Copy

ZENDEHBUDI, G. (2014). EFFECTS OF NON-UNIFORM WALL PROPERTIES ON STRESS DISTRIBUTION IN AN ABDOMINAL AORTIC ANEURYSM, CONSIDERING NONLINEAR CONSTITUTIVE EQUATIONS. SCIENTIA IRANICA, 21(3 (TRANSACTIONS B: MECHANICAL ENGINEERING)), 620-627. https://www.sid.ir/en/journal/ViewPaper.aspx?id=404053



Vancouver: Copy

ZENDEHBUDI G.R.. EFFECTS OF NON-UNIFORM WALL PROPERTIES ON STRESS DISTRIBUTION IN AN ABDOMINAL AORTIC ANEURYSM, CONSIDERING NONLINEAR CONSTITUTIVE EQUATIONS. SCIENTIA IRANICA. 2014 [cited 2021May15];21(3 (TRANSACTIONS B: MECHANICAL ENGINEERING)):620-627. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=404053



IEEE: Copy

ZENDEHBUDI, G., 2014. EFFECTS OF NON-UNIFORM WALL PROPERTIES ON STRESS DISTRIBUTION IN AN ABDOMINAL AORTIC ANEURYSM, CONSIDERING NONLINEAR CONSTITUTIVE EQUATIONS. SCIENTIA IRANICA, [online] 21(3 (TRANSACTIONS B: MECHANICAL ENGINEERING)), pp.620-627. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=404053.



 
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