title: Comparative analysis of initial state in inhomogeneous rods
metadata.name: dc.contributor.author
metadata.value: Vatulyan, Aleksandr O.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Nedin, Rostislav D.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2016-09-01T15:24:00Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2016-09-01T15:24:00Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2016-03
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/3842
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The development and improvement of models of inhomogeneous bodies in the presence of residual stress
  and deformation fields plays an important role in the mechanics of deformable solid body. From the
  viewpoint of practical applications, one of the most prospective inhomogeneity type is the class of
  functionally graded composites (FGC), which material properties vary depending on coordinates. The
  gradient of properties in such materials is due to the inhomogeneous chemical composition, or the
  microstructure, or the atomic order. Research on beam-like FGC is the very first global step of exploration
  of FGC properties. A key question in the problem of monitoring of technical conditions of an object is often a question
  of proper selection of material’s damage characteristics detectiontechnique, and conducting a set of
  corresponding experimental investigations. A failure under loading belowthe allowable one is often due
  to unaccounted preliminary state (PS). It is important to provide the analysis of different types of
  inhomogeneity of material properties and PS factors (including residual stress and deformations) on
  dynamic characteristics.
  In the present paper the effect of various types of PS on acoustical characteristics spectrum
  (eigenfrequencies, frequency-response functions) is analyzed in FGC-beams. In the framework of the
  Timoshenko model, such PS factors are considered as residual stress, residual deflection, and residual
  angle of rotation of the principal axe of the beam due to bending. The computational experiments are
  conducted and analyzed. Refs 19. Figs 4.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: Работа выполнена в рамках программы фундаментальных исследований по стратегическим
  направлениям развития науки Президиума РАН №1 «Фундаментальные проблемы математического
  моделирования», при поддержке РФФИ (проекты №13-01-00196, №16-38-60157 мол_а_дк) и гранта
  Президента РФ МК-5440.2016.1.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Series 1. Mathematics. Mechanics. Astronomy;Vol. 3 (61); Issue 1
metadata.lang: -
metadata.name: dc.subject
metadata.value: initial stress-strain state
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: functional gradient
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: inhomogeneity
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: rod
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Timoshenko’s model
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: frequency-response function
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Comparative analysis of initial state in inhomogeneous rods
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: Vatulyan_Nedin.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/3842/1/Vatulyan_Nedin.pdf
resources.format: Adobe PDF
resources.size: 589,64 kB