RT Journal Article
T1 Stiffness control in adaptive thin-walled laminate composite beams
A1 Rivas Rodríguez, Elisa
A1 Barbero Pozuelo, Enrique
AB The aim of this paper is to verify the control of the stiffness that is feasible to achieve in a thin-walled box-beam made from a laminate by including an adaptive material with variable stiffness. In this work, a material having a strongly varying Young Modulus under minor temperature changes was included in the cross-section. An analytical model was used to estimate the position of shear centre and the axial, bending, torsional, and shear stiffnesses of the cross-section. Two cross-sections were analysed, one with an adaptive wall and another with two adaptive walls. In both sections, the torsional stiffness could be strongly altered with minor temperature variations. In the section with one adaptive wall, the shear centre and thus the bending twist coupling was also strongly modified. A study was made of the influence on the control of stiffnesses exerted by the overall cross-section thickness and the thickness of the adaptive walls.
PB Elsevier
SN 1359-835X
YR 2016
FD 2016-01-01
LK https://hdl.handle.net/10016/23833
UL https://hdl.handle.net/10016/23833
LA eng
DS e-Archivo
RD 19 may. 2024