Conditional Lagrange Derivative with Gibbs Function

Authors

  • Gyula Béda
    Affiliation
    Budapest Univ. Tech. and Econ.
  • Péter B. Béda
    Affiliation
    Budapest Univ. Tech. and Econ.
https://doi.org/10.3311/PPme.7141

Abstract

In forming constitutive relations a method of Mindlin was used. By introducing the conditional Lagrange derivative and by using the laws of thermodynamics a formula  is obtained for ε. In the first law Gibbs function is used. This formula should be satisfied in case of constitutive relation.

Keywords:

Mindlin’s method, conditional Lagrange derivative, Gibbs function

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Published Online

2015-01-26

How to Cite

Béda, G., Béda, P. B. “Conditional Lagrange Derivative with Gibbs Function”, Periodica Polytechnica Mechanical Engineering, 59(1), pp. 48–50, 2015. https://doi.org/10.3311/PPme.7141

Issue

Vol. 59 No. 1 (2015)

Section

Articles