The Influence of the Number of Finite Elements upon the Accuracy of the Results Obtained Using Discrete Models
Gilbert-Rainer Gillich, Cornel Hațiegan, Nicoleta Gillich, Carla Protocsil, Vasile Iancu · DOAJ (DOAJ: Directory of Open Access Journals) · 2013
Discrete models are often used because they require a simple mathematical approach, even if their accuracy is inferior to continues models. This paper presents a study regarding the influence of the number of used elements upon the accuracy with which the natural frequencies of straight beams can determined. The results show that, to achieve a reasonable accuracy, it is necessary to use at least ten elements, while for rigorous calculus, more than three hundred elements must be considered.