000021649 001__ 21649
000021649 005__ 20170622131258.0
000021649 04107 $$aeng
000021649 046__ $$k2017-06-15
000021649 100__ $$aIndeitsev, Dmitry
000021649 24500 $$aVIBRATIONS IN A ROD WITH INTERNAL PERIODIC STRUCTURE

000021649 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021649 260__ $$bNational Technical University of Athens, 2017
000021649 506__ $$arestricted
000021649 520__ $$2eng$$aDiffusion of an impurity in a periodic lattice structure is investigated. Based on a two-component continuum model, a generalized equation of diffusion in the material is obtained [1]. This allows us to take into account influence of the internal structure of material on its mechanical properties. The diffusion coefficient depends on the lattice strain and its periodic structure. As an example, redistribution of hydrogen in a metal rod under dynamic loading is studied. We use the method of averaging and multi-scale analysis to find the problem solutions [2]. It is shown that a generalized rigidity of the rode decreases substantially with increase of the oscillation frequency (amplitude). The results are compared with experiments on redistribution of hydrogen under deformation of metal samples. 

000021649 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021649 653__ $$a

000021649 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021649 720__ $$aIndeitsev, Dmitry$$iMochalova, Yulia
000021649 8560_ $$ffischerc@itam.cas.cz
000021649 8564_ $$s116296$$uhttps://invenio.itam.cas.cz/record/21649/files/17374.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS05] Periodicity-induced effects and methods in structural dynamics
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000021649 962__ $$r21500
000021649 980__ $$aPAPER