INVESTIGADORES
AMBROSINI Ricardo Daniel
artículos
Título:
A beam element for coupled torsional-flexural vibration of doubly unsymmetrical thin walled beams axially loaded
Autor/es:
FERNANDA DE BORBÓN; ANÍBAL MIRASSO; DANIEL AMBROSINI
Revista:
COMPUTERS & STRUCTURES
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2011 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
Vlasovs 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.