INVESTIGADORES
DE BORBON Fernanda Maria
artículos
Título:
A beam element for coupled torsional-flexural vibration of doubly unsymmetrical thin walled beams axially loaded
Autor/es:
FERNANDA DE BORBÓN; ANIBAL MIRASSO; RICARDO DANIEL AMBROSINI
Revista:
COMPUTERS & STRUCTURES
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2011 vol. 89 p. 1406 - 1416
ISSN:
0045-7949
Resumen:
A coupled torsional-bending finite element with shear deformations and rotatory inertia for vibration of nonsymmetric thin walled beams axially loaded is developed. The equations of motion are based on Vlasov?s theory of thin-walled beams, which are modified to include an axial load. The formulation is also applicable to solid beams. The Hermite cubic polynomials are adopted as shape functions. Mass, elastic stiffness and geometrical stiffness matrices of unsymmetrical cross-section beams are presented. In order to verify the accuracy of this theory and the corresponding beam element developed, a numerical study is presented and compared with the literature and experimental tests
