STRENGTH ANALYSIS OF BNNT REINFORCED POLYMER BASED NANO-COM POSITES

Abstract

Boron nitride nanotubes (BNNT) reinforced Nano-composites are highly engineered materials. BNNTs cytocompatibility and potential biocompatibility with superior mechanical and chemical properties make them explorable for use in wide biological applications. BNNTs reinforced composite made coronary stents are ventured in this report. Stents are spring like structures used to support weak arteries and avoid blockages. The study aims at providing preclinical stent testing tools to the cardiovascular surgeons in order avoid re-surgeries and ensure higher life spans of the patients. The composite required for stent application is proposed with suitable mechanical properties and compatibility. Different stents are modelled as per the current availability and manufacturing techniques. The optimum design can be chosen on the basis of stress analysis. The Stresses caused on the arteries should be minimum for their longer life. Modal analysis of the stents is also done. The study of blood flow inside arteries implanted with stents is necessary in order to obtain close to real situations as the shear stresses acting on the artery and stent walls play a major role in their damage. The blood is a non-Newtonian fluid with pulsatile flow in artery vessels of complex geometry and elasticity. The simulations are done with the help of CFD software.