APPLICATIONS OF FINITE ELEMENT STRUCTURAL ANALYSIS IN THE
MICROSTRUCTURES FIELD AND THEIR SPECIFIC ISSUES
Math. Petru Cardei, PhD. Vergil Muraru, Researcher Raluca Sfiru, Research Assistant Sebastian Muraru
National Institute of Research - Development for Machines and Installations designed to Agriculture and Food Industry – INMA, Romania
Proccedings of SGEM Vienna Green International Scientific Conference, 2 - 5 November, 2016 Vienna, Austria, ISBN 978-619-7105-79-7, ISSN 1314-2704, DOI: 10.5593/sgem2016HB63, Book 6 Vol 3, pp. 11-18.
The problems and the solutions presented in this paper refer to the difficulties arising in numerical analysis of structural models for both microstructures and macrostructures. Difficulties discussed and resolved in some way, are resulted from the long practice in the field of analysis and numerical simulation for mechanical structures, including some phenomena coupled with thermal fields. The material refers specifically to numerical modeling using finite element method, but the authors have also used other numerical methods in such matters.There are mentioned some applications of the numerical analysis in the microstructures field and several own contributions. In the paper we analyze and propose solutions to the problem of the existence of an optimal meshing for the existence and uniqueness of the problem. The solutions obtained in the macrostructures field are applied to microstructures, possibly with minor modifications. The proposed solutions shows that between the profound theory of numerical methods and practical application of these methods to industrial technical problems or even research, there is a great void regarding the guarantee to obtain real solutions to the problem. It depends more on the engineering art and the trust of engineers in tradition and experience more than in the mathematical certainties.