Spectral FEM-Based Dynamic Characterization of Structural Joints: Theory and Experiment
A spectral element (SE)-model based frequency-domain method was proposed in the previous work  to identify the dynamic characteristics of a structural joint within onedimensional structures. In the present work, experimental work is conducted to verify the proposed method. The bolt-joint is represented by an equivalent joint model with four parameters, and the four parameters are determined by experimentally measured FRF data. The experimentally identified bolt-joint is shown to provide the dynamic responses which are in good agreement with measured dynamic responses.
Soon-Bok Lee and Yun-Jae Kim
U. Lee et al., "Spectral FEM-Based Dynamic Characterization of Structural Joints: Theory and Experiment", Key Engineering Materials, Vols. 326-328, pp. 1629-1632, 2006