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All Journal Wave: Jurnal Ilmiah Teknologi Maritim Makara Journal of Technology
Agung Budipriyanto
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering

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Aplikasi Sandwich Plate System Berbahan Core Limbah Cangkang Kerang pada Geladak Kapal Abdullah, Kharis; Zubaydi, Achmad; Budipriyanto, Agung
Wave: Jurnal Ilmiah Teknologi Maritim Vol 12, No 2 (2018)
Publisher : Wave: Jurnal Ilmiah Teknologi Maritim

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (573.188 KB) | DOI: 10.29122/jurnalwave.v12i2.2919

Abstract

The development of technology in the field of materials and construction produces many innovations, one of them is sandwich plate system. Sandwich plate system is a material formed by two different materials into one layer. Sandwich plate system consists of face that from plate and core form composite. Clam shells are one of the waste materials that can be used as filler on the core. The composite material that use as a core is a mixture of clam shells powder as filler and resin as a matrix. The combination of clam shells powder and resin, produces strong composite materials. Sandwich plate system using core from clam shelsl powder and resin produce good strength. The material using 20% clam shells powder as filler of the resin weight has maximum stress 53.32 N/mm2 on the deck and 53.20 N/mm2 for 30% of filler by weight of the resin. The maximum stress value is still below the permission stress required by the class rule.   
Sandwich Panel Manufacturing Method In Form of Test Specimens For Ship Construction Utomo, Edy; Zubaydi, Achmad; Budipriyanto, Agung
Wave: Jurnal Ilmiah Teknologi Maritim Vol 11, No 1 (2017)
Publisher : Wave: Jurnal Ilmiah Teknologi Maritim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jurnalwave.v11i1.2194

Abstract

Sandwich panel as a composite materials require special method of manufacture, to produce the best of physical condition. This study give the manufacturing process of sandwich panel for the purpose of testing the strength of material. Sandwich panel created with molding method for simplify the process of work and can be repeated if a failure occurs. Saveral failures occur in creating process until preparation specimen process that are influenced by saveral things, such as damage caused by the temperature of the sun, difference in viscosity between the layers of the conditions faceplate (smooth and rough), and the method of cutting the sandwich panel which requires cutting methods at low temperatures and does not produce the high vibration to avoid damage to the material before material strength test were performed.
SANDWICH PANEL MANUFACTURING METHOD IN FORM OF TEST SPECIMENS FOR SHIP CONSTRUCTION Utomo, Edy; Zubaydi, Achmad; Budipriyanto, Agung
Wave: Jurnal Ilmiah Teknologi Maritim Vol 11, No 1 (2017)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jurnalwave.v11i1.2194

Abstract

Sandwich panel as a composite materials require special method of manufacture, to produce the best of physical condition. This study give the manufacturing process of sandwich panel for the purpose of testing the strength of material. Sandwich panel created with molding method for simplify the process of work and can be repeated if a failure occurs. Saveral failures occur in creating process until preparation specimen process that are influenced by saveral things, such as damage caused by the temperature of the sun, difference in viscosity between the layers of the conditions faceplate (smooth and rough), and the method of cutting the sandwich panel which requires cutting methods at low temperatures and does not produce the high vibration to avoid damage to the material before material strength test were performed.
APLIKASI SANDWICH PLATE SYSTEM BERBAHAN CORE LIMBAH CANGKANG KERANG PADA GELADAK KAPAL Abdullah, Kharis; Zubaydi, Achmad; Budipriyanto, Agung
Wave: Jurnal Ilmiah Teknologi Maritim Vol 12, No 2 (2018)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (573.188 KB) | DOI: 10.29122/jurnalwave.v12i2.2919

Abstract

The development of technology in the field of materials and construction produces many innovations, one of them is sandwich plate system. Sandwich plate system is a material formed by two different materials into one layer. Sandwich plate system consists of face that from plate and core form composite. Clam shells are one of the waste materials that can be used as filler on the core. The composite material that use as a core is a mixture of clam shells powder as filler and resin as a matrix. The combination of clam shells powder and resin, produces strong composite materials. Sandwich plate system using core from clam shelsl powder and resin produce good strength. The material using 20% clam shells powder as filler of the resin weight has maximum stress 53.32 N/mm2 on the deck and 53.20 N/mm2 for 30% of filler by weight of the resin. The maximum stress value is still below the permission stress required by the class rule.   
Sandwich Panel Manufacturing Method In Form of Test Specimens For Ship Construction Edy Utomo; Achmad Zubaydi; Agung Budipriyanto
Wave: Jurnal Ilmiah Teknologi Maritim Vol. 11 No. 1 (2017)
Publisher : Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jurnalwave.v11i1.2194

Abstract

Sandwich panel as a composite materials require special method of manufacture, to produce the best of physical condition. This study give the manufacturing process of sandwich panel for the purpose of testing the strength of material. Sandwich panel created with molding method for simplify the process of work and can be repeated if a failure occurs. Saveral failures occur in creating process until preparation specimen process that are influenced by saveral things, such as damage caused by the temperature of the sun, difference in viscosity between the layers of the conditions faceplate (smooth and rough), and the method of cutting the sandwich panel which requires cutting methods at low temperatures and does not produce the high vibration to avoid damage to the material before material strength test were performed.
Aplikasi Sandwich Plate System Berbahan Core Limbah Cangkang Kerang pada Geladak Kapal Kharis Abdullah; Achmad Zubaydi; Agung Budipriyanto
Wave: Jurnal Ilmiah Teknologi Maritim Vol. 12 No. 2 (2018)
Publisher : Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jurnalwave.v12i2.2919

Abstract

The development of technology in the field of materials and construction produces many innovations, one of them is sandwich plate system. Sandwich plate system is a material formed by two different materials into one layer. Sandwich plate system consists of face that from plate and core form composite. Clam shells are one of the waste materials that can be used as filler on the core. The composite material that use as a core is a mixture of clam shells powder as filler and resin as a matrix. The combination of clam shells powder and resin, produces strong composite materials. Sandwich plate system using core from clam shelsl powder and resin produce good strength. The material using 20% clam shells powder as filler of the resin weight has maximum stress 53.32 N/mm2 on the deck and 53.20 N/mm2 for 30% of filler by weight of the resin. The maximum stress value is still below the permission stress required by the class rule.   
Dynamic Characteristic Identification of Seismic-Excited Multi-Story Buildings through Response-Only Technique Budipriyanto, Agung; Suprobo, Priyo
Makara Journal of Technology Vol. 18, No. 1
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Identifying dynamic characteristics of civil engineering structures is still a challenging task. It intends to assess behavior of the structures under time-dependent loads. This paper discusses a methodology suitable for identifying the characteristics of multi-story buildings using only their measured response under earthquake ground excitations. Appropriateness of technique used for structural identification was corroborated through coherence of the structure’s responses. The methodology was applied for identifying the characteristics of 14-story and 20-story office buildings located in a high seismic region. Responses of these two buildings recorded during three different seismic ground motions were investigated. The buildings’ response spectral densities and singular values were computed and utilized to identify their dynamic characteristics, viz. modal frequencies, damping factors, and mode types such as bending or torsion mode. Results of this study were validated through comparisons with the results reported using different structural identification techniques. It indicated that the methodology implemented in this study was capable of identifying the dynamic characteristics of multi-story buildings using responses under seismic ground motions.
Co-Authors Abdullah, Kharis Achmad Zubaydi Edy Utomo Edy Utomo, Edy Kharis Abdullah Priyo Suprobo