Citation link:
Authors:
Tenchev, Rosen Tenchev; Тенчев, Росен Тенчев
Title:
The stress sampling points and the convergence of the h — adaptive finite element method
Other Titles:
Сходимост нa напреженията, в зависимост от начина им на изчисление, при h-адаптивния метод на крайните елементи
Date of Issue:
1995
Is Part of:
Proceedings of the Technical University – Sofia, 48(5), 1995, pp. 121-130
Publisher:
Технически университет - София
Identifiers:
0374-342X [issn]
Type:
Article
Language:
eng
Subject:
сходимост нa напреженията; напрежение във възлите; гаусови точки; изопараметрични елементи
Abstract:
The nodal stresses in a finite element may be calculated in two ways: (a) directly at the nodes; (b) by extrapolation from the stresses at the Gauss points. It will be shown by means of numerical examples, involving plane 8-node isoparametric elements, that the convergence of stresses in areas of stress concentration is superior -when using (a) rather than (b). A possibility for deterioration of stress accuracy, when using stress recovering scheme (b) and regular mesh refinement by element subdivision, is noticed.
Description:
Съдържа формули и схеми. – Библиогр., с. 130.
