This paper explores the mechanism of bending with kinking of a long single-walled carbon nanotube under pure bending with moderate bending angles. The prebuckling response was modeled using the existing continuum mechanics theory accounting for the ovalization of the cross section. The post-buckling behavior was characterized by the development of an elastic kink mechanism, considering the van ...

During the last decade Railways have become one of the most advanced and fast developing branches of transportation technology. The reason is very high speeds achievable by the most advanced modern trains (French TGV, German ICE, Italian Pendolino, Swedish X2000, Spanish AVE, Belgium Thalys, the Eurostar) and very low air pollution per passenger compared with road vehicles. Unfortunately, the i...

This paper presents an experimental study on the residual stress distribution of 60E2 (UIC 60) rails, and its influence rail bending fatigue resistance. First, a brief introduction concerning resistance is given. Second, investigation using sectioning method over height in foot rails presented. Third, stresses by applying X-ray diffraction elaborated. Afterwards, results these two methods are c...

The mechanical properties of cytoskeletal actin bundles play an essential role in numerous physiological processes including hearing, fertilization, cell migration and growth. Cells employ a multitude of actin-binding proteins to regulate actively bundle dimensions and crosslinking properties to suit biological function. The mechanical properties of actin bundles vary by orders of magnitude dep...

The present work is an experimental account of the way in which several machine settings, particularly cylinder knock-over and dial-height, influence fabric dimensions, course length, bending behavior and load extension of fabrics produced on a circular knitting machine. The results show that there are certain optimum settings for such variables as knock-over depth and dial-height for producing...

This study was carried out to determine the microstructure and mechanical properties of S49 rail steel. For this purpose, firstly, three samples steel material were prepared by cutting wire erosion method for point bending test. Microstructural analyzes examined scanning electron microscopy (SEM). Energy dispersion spectrometer (EDS) analysis performed chemical composition material. Hardness te...