− A method for the assessment of the dynamic behaviour of heavy current shunts is described, which is based on the evaluation of the shunt frequency response through spectral analysis of input and output measured signals. The method has been tested by applying it to simulated current impulses and experimented in the case of a pulse current, generated by the discharge of a cable capacitance, mea...

This paper provides analytic solutions for the dynamics of a pressurized elastoplastic thin-walled tube at small strains. The closed-form expressions stress and displacement fields are derived within framework thin cylindrical shell theory. Three dynamic load-processes considered: an increasing-constant internal pressure, rectangular triangular pulse loads. It is found that, depending on extern...

In this paper, a new hybrid structure of body-centered cubic lattice-filled thin-walled tube is designed, and the specimens one-piece printing split-printing are prepared by laser melting technique. The deformation mode energy absorption characteristics investigated experiments numerical simulations. Under axial compression, printed forms more wrinkles with smaller wavelengths, specific increas...

Thin-walled tubes are widely used as energy absorbers due to their high crashworthiness performance. This study aims evaluate the effect of plastic forming history carried out for thickness optimization on performance thin-walled square tube (TWST). Within scope study, a series numerical analyzes were conducted TWST using commercial finite element (FE) software. In order determine individual op...

in order to lighten the prestressed concrete solid members, nowadays, it is possible to make use of the advantage of hpc (fc'>60 mpa) as well as replacing the solid section with a psc thin-walled section for certain members such as circular and box columns. using the strength theory of aci, a numerical procedure along with a computer program was developed for the analysis of such sections ...

Metal thin-walled members have been widely used in building industry. Usually they are utilized as purlins, girts or ceiling beams. Due to slenderness of thin-walled cross-sections these structural members are prone to stability problems (e.g. flexural buckling, lateral torsional buckling). If buckling is not constructionally prevented their resistance is limited by buckling strength. In practi...

In this article, based on the Euler-Bernoulli beam theory, the large-amplitude vibration of multiwalled carbon nanotubes embedded in an elastic medium is investigated. The method of incremental harmonic balance is implemented to solve the set of governing nonlinear equations coupled via the van der Waals (vdW) interlayer force. The influences of number of tube walls, the elastic medium, nanotub...