Damage Identification of the Sandwich Plate Having Core from Rice Husk-Epoxy for Ship Deck Structure

Abdi Ismail, Achmad Zubaydi, Yudiono, Agung Budipriyanto

2018

Abstract

This paper discusses vibration-based damage identification applied on sandwich plate for ship structure using Finite Element Analysis Method (FEM) and Experimental Modal Analysis (EMA). The sandwich plate had 6mm-thick steel faceplates and 15mm-thick core. The core was made from epoxy and rice husk powder with two compositions, i.e., 10% and 15% rice husk powder by weight. The thickness of the faceplates and the core was designed for the main deck of a coal barge ship. Damage was introduced in the core. Then natural frequency and damping were measured before and after the damage was introduced. It was observed that for the sandwich plate with core made from 10% rice husk, the natural frequency deviations due to damage obtained by EMA and FEM is 0.39% and 0.81% respectively. Natural frequency deviations obtained by EMA and FEM for the sandwich with the core of 15% rice husk is 5.39% and 5.00% respectively. The damping ratios deviations due to damage for sandwich with core of 10% and 15% rice husk powder differed by 0.16% and 0.13% respectively. Thus, natural frequency and damping ratio could be used as damage identification parameters. Nevertheless, sensitivity analysis of the damage size is required for future development.

Paper Citation

in Harvard Style

Ismail A., Zubaydi A., Budipriyanto A. and Yudiono. (2018). Damage Identification of the Sandwich Plate Having Core from Rice Husk-Epoxy for Ship Deck Structure.In Proceedings of the 3rd International Conference on Marine Technology - Volume 1: SENTA, ISBN 978-989-758-436-7, pages 112-118. DOI: 10.5220/0008543301120118

in Bibtex Style

@conference{senta18,
author={Abdi Ismail and Achmad Zubaydi and Agung Budipriyanto and Yudiono},
title={Damage Identification of the Sandwich Plate Having Core from Rice Husk-Epoxy for Ship Deck Structure},
booktitle={Proceedings of the 3rd International Conference on Marine Technology - Volume 1: SENTA,},
year={2018},
pages={112-118},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0008543301120118},
isbn={978-989-758-436-7},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 3rd International Conference on Marine Technology - Volume 1: SENTA,
TI - Damage Identification of the Sandwich Plate Having Core from Rice Husk-Epoxy for Ship Deck Structure
SN - 978-989-758-436-7
AU - Ismail A.
AU - Zubaydi A.
AU - Budipriyanto A.
AU - Yudiono.
PY - 2018
SP - 112
EP - 118
DO - 10.5220/0008543301120118