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Published: Građevinar 71 (2019) 3
Paper type: Subject review
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On smoothness of solutions to structural problems and physical interpretation of weak formulation

Josip Dvornik, Damir Lazarević, Krešimir Fresl, Antonia Jaguljnjak Lazarević

Abstract

Typical structural modelling solutions are classified and described in the paper based on an approach that is more interpretative than formal. A special emphasis is placed on weak formulation and its physical interpretation which, in the authors’ opinion, is lacking in the literature. The attention is also drawn to approximation mistakes, caused by insisting on excessive smoothness of solutions. These considerations are backed by examples. It is hoped that the paper will contribute to understanding the essence of approximation of practical models in civil engineering, while clearly pointing to the power of weak formulation - the foundation of approximation procedures.

Keywords
structural model, strong formulation, weak formulation, residual, singular point, discontinuity

HOW TO CITE THIS ARTICLE:

Dvornik, J., Lazarević, D., Fresl, K., Lazarević, A. J.: On smoothness of solutions to structural problems and physical interpretation of weak formulation, GRAĐEVINAR, 71 (2019) 3, pp. 187-195, doi: https://doi.org/10.14256/JCE.2583.2018

OR:

Dvornik, J., Lazarević, D., Fresl, K., Lazarević, A. J. (2019). On smoothness of solutions to structural problems and physical interpretation of weak formulation, GRAĐEVINAR, 71 (3), 187-195, doi: https://doi.org/10.14256/JCE.2583.2018

LICENCE:

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This paper is licensed under a Creative Commons Attribution 4.0 International License.
Authors:
GR13 7 4 1 Dvornik WEB
Josip Dvornik
University of Zagreb,
Faculty of Civil Engineering
Damir WEB
Damir Lazarević
University of Zagreb,
Faculty of Civil Engineering
FRESL WEB
Krešimir Fresl
University of Zagreb
Faculty of Civil Engineering
Department for Engineering of Mechanics
AJL WEB
Antonia Jaguljnjak Lazarević
University of Zagreb
Faculty of Mining and Geology and Petroleum Engineering