DOI: 10.5937/jaes0-27708
This is an open access article distributed under the CC BY 4.0
Volume 19 article 783 pages: 208 - 216
The implementation of a sandwich panel on the marine structure needs better knowledge of mechanical behaviour,
primarily static and dynamic response. The static and dynamic response is investigated due to the application of a
sandwich panel on the ferry ro-ro ramp door using finite element software ABAQUS. Five modification models using
different sandwich thickness and stiffener configuration were compared using static analysis to analyze a comparison
of structural strength and weight saving. Additionally, the dynamic response was also investigated due to debonding problem. The influence of debonding ratio, geometry, number of debonding, debonding depth, debonding location, and boundary condition was carried out. Debonding was estimated by using free vibration analysis where the
Lanczos method for eigen values extraction was applied. Result of the static analysis showed that Model C caused
an increase in strength to weight ratio compared to the existing model. Furthermore, the natural frequency was being
calculated as modal parameters to investigate the debonding problem. The natural frequency of the debonded model
decreased due to discontinuity in the damaged area. The dynamic response using natural frequency change can be
performed as a structural health monitoring technique.
The research leading to these results has received financial support from the Master towards Doctoral Education
Program for Excellent Graduate (PMDSU) of the Ministry
of Research, Technology and Higher Education of The
Republic of Indonesia with contract number 3/AMD/E1/
KP.PTNBH/2020.
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