Modelling of mechanical phenomena in coronary stents based on numerical analysis

Idziak-Jabłońska, Aneta

doi:10.17814/mechanik.2015.7.243

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…A grid with elements was generated for the obtained geometrical models in order to carry out calculations by means of the finite element method [15,16]. Discretization was carried out by means of the element of 3D SOLID type and the analysed cases were discretized with eight-node elements.…”

Section: Table 1 Dimensions Of Individual Stent Parametersmentioning

confidence: 99%

Numerical Analysis of Mechanical Phenomena in Coronary Stent Made of Titanium Alloy Ti-13Nb-13Zr

Idziak-Jabłońska

2016

KEM

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Using the finite element method, this study determined mechanical characteristics of slotted-tube stents. The numerical calculations were carried out using ADINA v.8.8 software. Three models with different number of segments were used. The analysis was carried out for the titanium-matrix alloys Ti-13Nb-13Zr. Assuming the actual conditions of stent implantation, the stent is expected to expand to the diameter of 3.0 mm i.e. until it reaches the internal diameter of a healthy coronary vessel. The effect of the stent geometry was analysed, with emphasis on examination of the effect of key mechanical phenomena such as expansion pressure and suitable level of stress and plastic strain in stents. Analysis of the degree of foreshortening and dogboning after stent expansion was also carried out. The following assumptions were adopted in order to determine mechanical properties of stents: implantation at low expansion pressure, limitation of foreshortening ≤ 2%, low increase in the implant diameter in the beginning and at the end of the stent (dogboning effect).

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Section: Table 1 Dimensions Of Individual Stent Parametersmentioning

confidence: 99%

Numerical Analysis of Mechanical Phenomena in Coronary Stent Made of Titanium Alloy Ti-13Nb-13Zr

Idziak-Jabłońska

2016

KEM

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Modeling of mechanical phenomena in the platinum-chromium coronary stents

Idziak-Jabłońska

Karczewska

Kuberska

2017

J. Appl. Math. Comput. Mech.

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Abstract. This study discusses the geometrical model of a coronary stent with known design and strength analysis using the finite element method. The coronary stent model was made of platinum and chromium alloy. Static analysis based on compression of the coronary stent was also performed. The aim of the analysis was to examine the strength of the stent structure. The study analyzed stresses, plastic strains and displacements after applying a constant load to the stent walls. The mechanical phenomena such as percentage degree of shortening (foreshortening), relative narrowing and area of stent covering were also determined.MSC 2010: 92C10, 74L15, 65

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Modelling of mechanical phenomena in coronary stents based on numerical analysis

Abstract: MODELOWANIE ZJAWISK MECHANICZNYCH

Cited by 2 publications

References 4 publications

Numerical Analysis of Mechanical Phenomena in Coronary Stent Made of Titanium Alloy Ti-13Nb-13Zr

Numerical Analysis of Mechanical Phenomena in Coronary Stent Made of Titanium Alloy Ti-13Nb-13Zr

Modeling of mechanical phenomena in the platinum-chromium coronary stents

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