Energy absorption of densified veneer-aramid hybrid composites subjected to ballistic impact

Nugroho, Ananto; Triastuti,; Sufiandi, Sandi; Syahrial, Anne Zulfia

doi:10.1016/j.heliyon.2022.e10271

Cited by 4 publications

(3 citation statements)

References 27 publications

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“…IOP Publishing doi:10.1088/1755-1315/1183/1/012064 4 2.8 Data Analysis using R Data reading stored on MySQL during fermentation of BC, then analyzed using R programming languages refresh research [10]. R programming was used to analyze the relationship between each variable during fermentation, PCA analysis, and to examine the BC thickness formation kinetic model.…”

Section: Data Collectionmentioning

confidence: 99%

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Application of real-time image processing for monitoring bacterial cellulose growth in various nitrogen sources using soybean-boiled wastewater medium during fermentation

Astuti

Nugroho

Ahmadi

2023

IOP Conf. Ser.: Earth Environ. Sci.

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One of the utilizations of liquid waste of soybean boiling was a combination medium of bacterial cellulose (BC) fermentation. Recent study was found the implementation of image processing approach on observation of BC growth. This work utilized the image processing approach with a soybean-boiled wastewater medium using ammonium sulphate and yeast extract as nitrogen source. This study aimed to find out the highest correlation between variables that affect the fermentation process and to examine the kinetic model of the BC thickness during fermentation stage using Real-Time Image Processing (RTIP) approach with the variation of nitrogen sources. The outcome demonstrates that the correlation between time and thickness was found as the highest correlation variable during fermentation on both mediums. The Gompertz model equation was followed in the kinetic observation of BC growth on both medium and showed that the first growth of BC on ammonium sulphate was earlier than on yeast extract as nitrogen source. Further studies are also needed to understand the ability of image processing approach to detect potential failures in BC growth.

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Section: Data Collectionmentioning

confidence: 99%

“…The fermentation process uses a fermenter with a large surface area where oxygen can be contacted. Therefore, was covered with paper to prevent contaminants from outside air [10].…”

Section: Thickness Of Bacterial Cellulosementioning

confidence: 99%

Application of real-time image processing for monitoring bacterial cellulose growth in various nitrogen sources using soybean-boiled wastewater medium during fermentation

Astuti

Nugroho

Ahmadi

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…As a result, the originality of this work is that the endeavor to replace wood fiber with bacterial cellulose reinforcement and stabilize compaction veneer with resin impregnation has never been done previously. In this case, the results of the modification research will be used to make and use hybrid materials that can absorb ballistic energy [15].…”

Section: Introductionmentioning

confidence: 99%

Bacteria Cellulose and Resin Stabilization in Densified Veneer

Nugroho

Triastuti²,

Akbar³

et al. 2022

Trends Sci

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Cellulose produced by fermentation of acetic acid bacteria has high tensile strength. Meanwhile, cellulose derived from wood, which is abundant in nature, has a limit in strength. In this work, delignified wood veneer was immersed in Acetobacter xylinum culture medium to self-assemble bacterial cellulose into wood pores. Then the process was continued with a heating press. It makes the material denser and causes hydrogen bonds to form between the cellulose fibers. This study observed the densified hybrid veneer for the period of bacterial fermentation and impregnation of resin stabilization in tensile strength and dynamic mechanical analysis (DMA). The densified hybrid veneer of bacterial cellulose with resin impregnation had the maximum tensile strength after 7 days of fermentation. The DMA test showed that a densified hybrid veneer of bacterial cellulose stabilized with resin has a good ability to store cyclic energy and a damping factor that increases with temperature. HIGHLIGHTS A heating press compacted densified wood veneer with bacterial cellulose (BC), forming in hybrid veneers Hybrid veneer improves the mechanical strength Densified veneer-BC-stabilized by fermentation for 7 days had the maximum tensile strength The densified veneer that is reinforced with BC and stabilized with resin has a good ability to store cyclic energy GRAPHICAL ABSTRACT

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