Dynamic stability analysis of FG nanobeam under a sequence of moving nanoparticles used for drug delivery into body
Paper ID : 1157-ICNS
Rahman Khanahmadi *1, Mohammad Hashemian2, Mostafa Pirmoradian2
1Department of Mechanical engineering, Isfahan university of Technology, Isfahan, Iran
2Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr, Iran
Dynamic stability of nanotubes that used for drug delivery into body is attend in this paper. This study investigates the dynamic stability of the functionally graded (FGM) nanobeam based on the nonlocal elasticity theory. Nanoparticles pass over nanobeam sequentially with a constant velocity, and the nanoparticle inertia is also considered. Nanotubes and drug can be modelled as nanobeam and nanoparticles, respectively here. The functionally graded nanobeam properties, including Young’s modulus and density are taken by the power law. The classical equations of motion are obtained by applying the Hamilton’s principle according to the energy method. The governing equations are extracted using nonlocal elasticity theory. The dynamic stability graphs will be presented on nanoparticle mass-velocity coordinates. This article investigated the dynamic instability regions (DIRs) of FG nanobeam and small scale parameter effects. The results show that increasing small scale parameter in nonlocal elasticity theory reduces nanobeam stability and DIRs shift toward lower nanoparticle velocity.
Dynamic stability; Nanobeam; Drug delivery; Moving nanoparticle.
Status : Abstract Accepted (Poster Presentation)