Tek katlı karbon nanotüplerinin burulma deformasyonunun moleküler dinamik simulasyon çalışması

Thesis Title : A MOLECULAR DYNAMICS SIMULATION STUDYOF TORSIONAL DEFORMATIONS OF SINGLE-WALLED CARBONNANOTUBESAbstractIn this study we present the tight binding molecular dynamics (TBMD) simulationresults for torsional response of 10x10 single-walled carbon nanotubes for varyingnumbers of layers, twist angles and temperature conditions. TBMD method we use hasO(N) complexity and it has been executed both in sequential and parallel modes. Thecode is executed in a distributed memory system utilizing the concept of parallel virtualmachines (PVM). The mechanical properties of the simulated structure such as bondlength distribution, bond angle distribution, torsional deformations, total energy, shearmodulus and torsion stiffness were studied under various simulation conditions. We alsopresented the efficiency and speedup graphs of the parallel computation.Advisor: Prof. Dr . Tekin Dereli Date:3/08/2005Director: Date: