Article

DOI: 10.5937/jaes0-54570
This is an open access article distributed under the CC BY 4.0

Heni Siswanti
Department of Ocean Engineering, Faculty of Marine Technology, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia

Achmad Zubaydi*
Department of Naval Architecture, Faculty of Marine Technology, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia

Bambang Piscesa
Department of Civil Engineering, Faculty of Civil, Planning, and Geo-Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia

Husein Syahab
Department of Naval Architecture, Institut Teknologi Kalimantan, Balikpapan, Indonesia

Rizky Chandra Ariesta
Department of Naval Architecture, Faculty of Marine Technology, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia

An experimental study is presented to characterize the face/core debonding on sandwich plate specimens under mode-I loading. The experiment was conducted with the specimens of an asymmetrical double cantilever beam (ADCB). Several specimens with different core thicknesses were analysed to estimate the strain energy release rate (SERR). The SERR of mode-I (GI) calculation uses two data reduction methods namely the Modified Beam Theory (MBT) and Compliance Calibration (CC) methods. The GI depicted on the R-Curve expresses the damage behaviour of the sandwich plates. The critical energy release rate (GIC) resulted of the MBT data reduction method produces a higher value than CC method, due to the differing assumptions between the two methods. The GIC value also correlates directly with the peak load value. The difference in sandwich plate thickness, particularly the core material thickness, does not significantly affect the damage behavior regarding the sandwich material's GIC value.

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The research leading to these results has received finan¬cial support from the “BPI-Beasiswa Penyelesaian Studi S3” of the Ministry of Education and Culture of The Republic of Indonesia

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