RT Journal Article
SR Electronic
A1 Perkowski, Zbigniew
A1 Czabak, Mariusz
A1 Gozarska, Karolina
T1 Estimation of Shear Stiffness of Interlayer Connection in Two-Layer Composite Beams Based on Analysis of Natural Frequencies
JF Communications - Scientific Letters of the University of Zilina
YR 2013
VO 15
IS 4
SP 18
OP 20
DO 10.26552/com.C.2013.4.18-20
UL https://komunikacie.uniza.sk/artkey/csl-201304-0003.php
AB The paper shows possibilities of testing composite two-layer beams with flexible connectors (like bolts in steel-concrete beams and nails in wooden-concrete ones) offered by analysis of their natural frequencies. It enables an estimation of shear compliance for the interlayer connection if Young's moduli of layers are known thanks to finding the global minimum of function of errors between model and measured natural frequencies of beam. The considerations are illustrated by the results of our own laboratory-tests.