Over the past 10 years, the supereleastic nickel-titanium alloy Nitinol has found widespread application in the manufacture of small-scale biomedical devices, such as self-expanding endovascular stents. Although conventional stress/strain-life (S/N) analyses are invariably used as the primary method for design against fatigue loading and for predicting safe lifetimes, fracture mechanics-based m...

The pipeline distributor carries out deep loosening of the soil and three-tier fertilization. study aims to determine traction resistance working body ripper with a distribution pipe. uses basic provisions mathematics, theoretical mechanics, agricultural mechanics. method calculating cultivator-fertilizer equipped pipelines-distributors for fertilization is presented. components balance are det...

BACKGROUND Low back pain is one of the most frequent work related injuries in all occupations. Back school programs are therapeutic interventions directed towards treatment, prevention and rehabilitation of backaches. The purpose of this study was to (1) evaluate the test-retest reliability of the modified version of the Body Mechanics Evaluation Checklist (BMEC) and (2) examine the effectivene...

This paper describes a continuum model for analyzing the inelastic behavior of a single walled carbon nanotube (SWCNT) in different loading conditions. Because of limitations in using molecular dynamics (and other atomic methods) to model the failure load of the SWCNT, continuum mechanics methods are considered in this paper. Based on some experimental and theoretical results, an elasto-plastic...