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Random mass distribution in one-dimensional (1D) elastic solids in the presence of long-range interactions is studied in this paper. Besides the local Cauchy contact forces among adjacent elements, long-range forces depending on the product of interacting masses, as well as on their relative displacements, are considered. In this context, the random fluctuations of the mass distribution involve a stochastic model of the nonlocal interactions, and the random displacement field of the body is provided as the solution of a stochastic integro-differential equation. The presence of the random field of mass distribution is reflected in the random kernel of the solving integro-differential equation with deterministic static and kinematic boundary conditions, since the long-range interactions have no effects at the borders. Numerical applications are reported to highlight the effects of fluctuations of the mass field along the body on the long-range forces and the mechanical response of the 1D elastic body considered
Lingua originaleEnglish
pagine (da-a)379-394
Numero di pagine17
RivistaInternational Journal for Multiscale Computational Engineering
Stato di pubblicazionePublished - 2011

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Computational Mechanics
  • Computer Networks and Communications

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