Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
COMPARATIVE STUDY THROUGH BOUNDARY ELEMENT ANALYSIS OF KIRCHHOFF PLATES
Submission Author:
Carlos Lamarca Carvalho Sousa Esteves , SP , Brazil
Co-Authors:
Carlos Lamarca Carvalho Sousa Esteves, Carlos Daros
Presenter: Carlos Lamarca Carvalho Sousa Esteves
doi://10.26678/ABCM.COBEM2019.COB2019-0520
Abstract
This paper aims to study the difference in the usage of methodologies when analyzing Kirchhoff ’s plate bending problem under three different models using the boundary element method: quadratic continuous elements using both plate’s displacement and rotation equations; quadratic continuous elements using only displacement equation with points outside the boundary; quadratic discontinuous elements. The Shift Point Method was also integrated for evaluation of the Hadamard finite part when treating the hypersingular term from the rotation equation. The curvature of the element was taken into consideration in order to properly analyze curved plates. Conversion of the domain integral regarding acting body forces into a boundary integral was also implemented for speed. The first model showed better results overall in convergence and consistency of the results under different plate shapes and boundary conditions.
Keywords
Kirchhoff plate, Boundary Element, Corners
