Equivalence between higher-order stress power and heat flux in energy equation based on lattice dynamics

Y. Yasui, K. Shizawa, K. Takahashi

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The essence of macroscopic quantities in solid mechanics can be grasped by expressing these quantities in terms of kinematic and mechanical quantities of atoms. In this paper, a method is proposed for obtaining the microscopic definitions of internal forces of continua such as stress, higher-order stresses and heat flux. Moreover, the relation between higher-order stress power and heat flux is discussed expressing the first law of thermodynamics with microscopic quantities in the mesodomain. Comparing heat flux with higher-order stress power, it is clarified that the divergence of heat flux is equivalent to the total of each order power due to higher-order stresses.

Original languageEnglish
Pages (from-to)240-246
Number of pages7
JournalJournal of Engineering Materials and Technology, Transactions of the ASME
Volume121
Issue number2
DOIs
Publication statusPublished - 1999 Apr

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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