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General boundary element method for the dual-phase lag equations describing the heating of two-layered thin metal films

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

4 Citations (Scopus)

Abstract

Thermal interaction between two-layered thin metal film and the ultra-short laser pulse is considered. The problem is described by the system of the dual-phase lag equations supplemented by the appropriate boundary and initial conditions. To solve these equations the general boundary element method (GBEM) is proposed. At first, the GBEM for one layer is presented. Next, using the ideal contact condition at the interface between the layers (the form of this condition in the case of DPLE differs significantly from the classical condition occurring in the Fourier-type models), the final system of algebraic equations is formulated. At the stage of numerical computations the different intensities of the laser beam and the different exposure times are taken into account. The results are compared with the repeatedly verified explicit scheme of the finite difference method. The impact of the time step and length of internal cells on the results of computations is also discussed.

Original languageEnglish
Title of host publicationAdvanced Structured Materials
PublisherSpringer Verlag
Pages263-278
Number of pages16
DOIs
Publication statusPublished - 2020

Publication series

NameAdvanced Structured Materials
Volume113
ISSN (Print)1869-8433
ISSN (Electronic)1869-8441

Keywords

  • Dual-phase lag equation
  • General boundary element method
  • Thin metal films
  • Ultra-short laser pulse

ASJC Scopus subject areas

  • General Materials Science

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