Analisis Flexibility Unexpanded Balloon-Expandable Stent dengan Metode Elemen Hingga

Aribowo, Ilham Agung (2019) Analisis Flexibility Unexpanded Balloon-Expandable Stent dengan Metode Elemen Hingga. Undergraduate thesis, Institu Teknologi Sepuluh Nopember.

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Abstract

Stent merupakan tabung metal mikro berbentuk jaring yang biasa digunakan untuk menyangga pembuluh darah yang menyempit karena pertumbuhan plak. Agar dapat berfungsi dengan baik, Stent harus memiliki beberapa karakteristik tertentu. Salah satu karakteristik yang harus dimiliki stent adalah flexibility yang baik. flexibility stent dapat diprediksi dengan melakukan pengujian menggunakan simulasi metode elemen hingga.
Stent yang akan diteliti adalah stent tipe Balloon-expandable stent (BES) model Sinusoidal dan Spiral . Model 3D dibuat di Solidworks 2016 sedangkan analisis struktural dilakukan dengan ANSYS Workbench Student R18. Simulasi yang dilakukan adalah four-point bending test. Analisis yang diteliti adalah tegangan von mises dan nilai flexibility dari stent . Material model untuk stent adalah SS 316 L yang bersifat isotropik, sedangkan untuk balloon adalah polyurethane yang bersifat hiper elastik.
Hasil yang didapatkan dari penelitian ini adalah stent tipe sinusoidal dapat didefleksikan hingga 0,221 mm agar tetap dalam daerah elastis, sedangkan stent tipe spiral hingga 0,109 mm. Nilai flexibility stent tipe sinusoidal maksimal sebesar 0,003526 N-1. mm2 sedangkan stent tipe spiral sebesar 0,002478 N-1.mm2.
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Stents are mesh-shaped micro metal tubes commonly used to support narrowed blood vessels due to the growth of plaque. In order to function properly, Stents must have certain characteristics. One of the characteristics that stents must have is good flexibility. Stent flexibility can be predicted by testing using finite element method simulations.
The stents to be studied are Balloon-expandable stent type (BES) Sinusoidal and Spiral models. The 3D model was created at Solidworks 2016 while the structural analysis was carried out with ANSYS Workbench Student R18. The simulation is a four-point bending test. The analysis studied was the von mises stress and the flexibility value of the stent. Model material for stents is SS 316 L which is isotropic, while for balloon is polyurethane which is hyper elastic.
The results obtained from this study are sinusoidal type stents can be reflected up to 0.221 mm in order to remain in the elastic region, while spiral type stents up to 0.109 mm. Maximum sinusoidal type flexibility stent is 0,003526 N-1.mm2 while spiral type stent is 0,002478 N-1.mm2.

Item Type:	Thesis (Undergraduate)
Additional Information:	RSM 617.413 Ari a-1 2019
Uncontrolled Keywords:	Balloon expandable stents, flexibility, four-point bending test, Finite element method
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User:	Ilham Agung Aribowo
Date Deposited:	06 Dec 2021 02:35
Last Modified:	06 Dec 2021 02:35
URI:	http://repository.its.ac.id/id/eprint/61650

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