TY - JOUR
T1 - Experimental and numerical study of structural damping in a beam with bolted splice connection
AU - Mijatović, O.
AU - Borković, A.
AU - Guzijan-Dilber, M.
AU - Mišković, Z.
AU - Salatić, R.
AU - Mandić, R.
AU - Golubović-Bugarski, V.
N1 - Publisher Copyright:
© 2023
PY - 2023/5
Y1 - 2023/5
N2 - The objective of this research is to develop a numerical model of one widely used bolted beam splice connection that dissipates energy through structural damping. The reference experimental setup is carefully designed to obtain the highly nonlinear dynamic response due to the suddenly released load. The fact that the monolithic beam with welded connection has a linear response is utilized for the initial calibration of the numerical and experimental models. Then, the numerical model of bolted beam splice connection is verified and adopted through an iterative process. The influences of time and spatial integration, bolt load application, element type, contact formulation, bulk viscosity, and mass scaling are discussed. A special attention is given to the load application and load release functions. After the verification, the Abaqus/Explicit numerical model is validated through the comparison with experimental data, where an appropriate friction coefficient is adopted. It is demonstrated that the nonlinear structural damping occurs due to the complex micro slip behavior at the contact interface.
AB - The objective of this research is to develop a numerical model of one widely used bolted beam splice connection that dissipates energy through structural damping. The reference experimental setup is carefully designed to obtain the highly nonlinear dynamic response due to the suddenly released load. The fact that the monolithic beam with welded connection has a linear response is utilized for the initial calibration of the numerical and experimental models. Then, the numerical model of bolted beam splice connection is verified and adopted through an iterative process. The influences of time and spatial integration, bolt load application, element type, contact formulation, bulk viscosity, and mass scaling are discussed. A special attention is given to the load application and load release functions. After the verification, the Abaqus/Explicit numerical model is validated through the comparison with experimental data, where an appropriate friction coefficient is adopted. It is demonstrated that the nonlinear structural damping occurs due to the complex micro slip behavior at the contact interface.
KW - Bolted beam splice connection
KW - Frictional contact
KW - Nonlinear dynamic analysis
KW - Structural damping
UR - http://www.scopus.com/inward/record.url?scp=85149392550&partnerID=8YFLogxK
U2 - 10.1016/j.tws.2023.110661
DO - 10.1016/j.tws.2023.110661
M3 - Article
AN - SCOPUS:85149392550
SN - 0263-8231
VL - 186
JO - Thin-Walled Structures
JF - Thin-Walled Structures
M1 - 110661
ER -