afid nugroho - Academia.edu (original) (raw)

Papers by afid nugroho

Journal of Physics: Conference Series, 2018

This paper described the effect of different type of manufacturing method to tensile properties o... more This paper described the effect of different type of manufacturing method to tensile properties of hybrid composite woven agel leaf fiber and glass fiber as an alternative of LSU structure material. The research was done by using 3 ply of woven agel leaf fiber (ALF) and 3 ply of glass fiber (wr200) while the matrix was using unsaturated polyester. Composite manufacturing method used hand lay-up and vacuum bagging. Tensile test conducted with Tensilon universal testing machine, specimen shape and size according to standard size ASTM D 638. Based on tensile test result showed that the tensile strength of agel leaf fiber composite with unsaturated polyester matrix is 54.5 MPa by hand lay-up and 84.6 MPa with vacuum bagging method. From result of tensile test, hybrid fiber agel composite and glass fiber with unsaturated polyester matrix have potential as LSU structure.

Lecture Notes in Mechanical Engineering, 2019

The use of carbon-based fiber that can disrupt radar signal transmission on the flights especiall... more The use of carbon-based fiber that can disrupt radar signal transmission on the flights especially on UAV remains problem. To address the problem, composites based UAV skin using E-glass, S-glass and aramid fibres as well as epoxy resin has been successfully manufactured by vacuum infusion process. Full factorial design of experiment (DoE) and analysis of variance (ANOVA) was performed using Minitab 16 to analyse the effects of layer variations on specific tensile, compression and bonding shear. Fiber configuration was divided into two layers, namely layer 1–9 and 10–18. In general, mechanical properties i.e. tensile strength, bonding shears and compression strength increased compared with epoxy resin properties. Tensile strength and modulus increased by 484% and 204% respectively, while bonding shear and compressive strength increased by 24226% and 94% respectively. The overall result indicated that the best properties of composites-based UAV skin were obtained by the utilization o...

Glass fiber composites were fabricated from two different manufacturing techniques, vacuum infusi... more Glass fiber composites were fabricated from two different manufacturing techniques, vacuum infusion and vacuum bag, two resin types (epoxy, vinyl ester), as well as and two fiber combinations (S-glass and E-glass). The analyzed properties were tensile modulus, strength as well as compression strength, with relation to sample morphology and fracture surface due to compression. The results showed that all variables and their interaction did not significantly influence tensile modulus, while manufacturing methods was the only significant variable influenced tensile strength. The results showed that vacuum infusion samples had better tensile strength than those produced by vacuum bag due to less resin and bubbles. In term of compression, the change on strength was highly contributed by resin type and fiber used on layer A. Composites samples with epoxy resin showed better strength than those of vinyl ester may be due to better initial resin property. While, imbalance transfer load and fiber density inhibiting resin penetration and causing resin rich samples produced lower compression strength for samples with S-glass applied to layer A than E-glass. Further analysis on fracture surface showed that most samples failed on compression test due to shear, kink and resin break.

Natural fiber reinforcement polymer composites have good prospects for development in developing ... more Natural fiber reinforcement polymer composites have good prospects for development in developing countries, such as Indonesia. Composite technology development of natural fiber line with government policy to explore the potential of the existing local genius. The aim of this research is to know the influence of matrix used in making composite to tensile strength of agel leaf fiber composite woven without chemical treatment, to know mechanical bond and to investigate composite fracture mechanism. Research carried out by using one type of natural fibers are leaf fibers that have been woven agel with size 20x20 cm 6 plys while matrix using unsaturated polyester and epoxy. Methods of making composites using vacuum bagging. Tensile test conducted by Tensilon tensile test machine, the shape and size of the specimens in accordance with ASTM standard D 638. Based on the results of tensile tests showed that the tensile strength fiber composite leaf agel with epoxy matrix is 31 MPa higher tha...

Glass fiber composites were fabricated from two different manufacturing techniques, vacuum infusi... more Glass fiber composites were fabricated from two different manufacturing techniques, vacuum infusion and vacuum bag, two resin types (epoxy, vinyl ester), as well as and two fiber combinations (S-glass and E-glass). The analyzed properties were tensile modulus, strength as well as compression strength, with relation to sample morphology and fracture surface due to compression. The results showed that all variables and their interaction did not significantly influence tensile modulus, while manufacturing methods was the only significant variable influenced tensile strength. The results showed that vacuum infusion samples had better tensile strength than those produced by vacuum bag due to less resin and bubbles. In term of compression, the change on strength was highly contributed by resin type and fiber used on layer A. Composites samples with epoxy resin showed better strength than those of vinyl ester may be due to better initial resin property. While, imbalance transfer load and f...

Lecture Notes in Mechanical Engineering

The use of composite materials in UAV development has increased significantly. The chosen of comp... more The use of composite materials in UAV development has increased significantly. The chosen of composite material for the UAV structure is due to the advantage of composite both from the strength and the light side of material that good for improving structure performance because it can be reducing the weight of the structure. Nowadays, research in material not only focus on reducing weight but also focus on reducing undegradable waste to environment. Tensile test has been carried out for Cassava Peel/Lycal composite and E-Glass/Lycal Composite. The comparison results showed that the cassava/lycal composite has modulus elasticity average value (3445,3 ± 0.36 MPa) smaller than Hybrid Cassava Peel+E-Glass 135/Lycal Composite (4704.28 ±0,67 MPa) and E-Glass 135/Lycal Composite (5916,5 ± 1,24 MPa). This trend is happened also for tensile strength value with average 44,63 ± 5,11 MPa for Cassava Peel/Lycal, 143,01 ± 15,82 MPa for E Glass 135/Lycal composite and 109.68 ± 7,05 MPa for Hybrid Cassava Peel+E-Glass 135/Lycal Composite. This result showed that the strength of E Glass 135/Lycal Composite still much bigger than Cassava Peel/Lycal Composite with but not really higher than Hybrid Cassava Peel+E-Glass 135/Lycal Composite. It means the cassava composite can’t be the alternative material for UAV skin but it can be used for another part inside the UAV that not directly touching from outside impact.

NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020

The Composite are material consists of two or more materials which combine macroscopically, for n... more The Composite are material consists of two or more materials which combine macroscopically, for now the strength of the material, it must be test with various method which is represented by the specimen. On this paper will research about material sandwich Composite with flexural three-point bending and flatwise compressive test method. In manufactured generally Composite using vary method. Usually manufacturing uses hand lay-up, vacuum bagging, VARI method and other. In this research author will be use VARI method, the reason is VARI method has a low-cost process and more efficient. In this experiment was carried out on sandwich Composite using carbon fiber unidirectional 0⁰ , with aramid honeycomb core. Specimen and testing will be follow ASTM C365 standard which is flatwise testing standard, for specimen with lycal resin the results average is 56089.6 N Maximum load, 26.68 MPa Compressive of strength, 5.04 moduli of elasticity 5.04 MPa, while for specimen with Vinyl Ester resin the results average is 56089.6 MPa Maximum load, 26.68 MPa Compressive of the core strength, 5.04 MPa moduli of elasticity and Flexural three-point banding will be follow ASTM C393 standard which is Flexural testing standard. The Results of the specimen using Vinyl Ester resin is 1029.14 N maximum load, 13.78 MPa Facing stress, 861.94 moduli of elasticity.

PROCEEDINGS OF THE 3RD INTERNATIONAL SEMINAR ON METALLURGY AND MATERIALS (ISMM2019): Exploring New Innovation in Metallurgy and Materials

Journal of Physics: Conference Series, 2018

This paper described the effect of different type of manufacturing method to tensile properties o... more This paper described the effect of different type of manufacturing method to tensile properties of hybrid composite woven agel leaf fiber and glass fiber as an alternative of LSU structure material. The research was done by using 3 ply of woven agel leaf fiber (ALF) and 3 ply of glass fiber (wr200) while the matrix was using unsaturated polyester. Composite manufacturing method used hand lay-up and vacuum bagging. Tensile test conducted with Tensilon universal testing machine, specimen shape and size according to standard size ASTM D 638. Based on tensile test result showed that the tensile strength of agel leaf fiber composite with unsaturated polyester matrix is 54.5 MPa by hand lay-up and 84.6 MPa with vacuum bagging method. From result of tensile test, hybrid fiber agel composite and glass fiber with unsaturated polyester matrix have potential as LSU structure.

Lecture Notes in Mechanical Engineering, 2019

The use of carbon-based fiber that can disrupt radar signal transmission on the flights especiall... more The use of carbon-based fiber that can disrupt radar signal transmission on the flights especially on UAV remains problem. To address the problem, composites based UAV skin using E-glass, S-glass and aramid fibres as well as epoxy resin has been successfully manufactured by vacuum infusion process. Full factorial design of experiment (DoE) and analysis of variance (ANOVA) was performed using Minitab 16 to analyse the effects of layer variations on specific tensile, compression and bonding shear. Fiber configuration was divided into two layers, namely layer 1–9 and 10–18. In general, mechanical properties i.e. tensile strength, bonding shears and compression strength increased compared with epoxy resin properties. Tensile strength and modulus increased by 484% and 204% respectively, while bonding shear and compressive strength increased by 24226% and 94% respectively. The overall result indicated that the best properties of composites-based UAV skin were obtained by the utilization o...

Glass fiber composites were fabricated from two different manufacturing techniques, vacuum infusi... more Glass fiber composites were fabricated from two different manufacturing techniques, vacuum infusion and vacuum bag, two resin types (epoxy, vinyl ester), as well as and two fiber combinations (S-glass and E-glass). The analyzed properties were tensile modulus, strength as well as compression strength, with relation to sample morphology and fracture surface due to compression. The results showed that all variables and their interaction did not significantly influence tensile modulus, while manufacturing methods was the only significant variable influenced tensile strength. The results showed that vacuum infusion samples had better tensile strength than those produced by vacuum bag due to less resin and bubbles. In term of compression, the change on strength was highly contributed by resin type and fiber used on layer A. Composites samples with epoxy resin showed better strength than those of vinyl ester may be due to better initial resin property. While, imbalance transfer load and fiber density inhibiting resin penetration and causing resin rich samples produced lower compression strength for samples with S-glass applied to layer A than E-glass. Further analysis on fracture surface showed that most samples failed on compression test due to shear, kink and resin break.

Natural fiber reinforcement polymer composites have good prospects for development in developing ... more Natural fiber reinforcement polymer composites have good prospects for development in developing countries, such as Indonesia. Composite technology development of natural fiber line with government policy to explore the potential of the existing local genius. The aim of this research is to know the influence of matrix used in making composite to tensile strength of agel leaf fiber composite woven without chemical treatment, to know mechanical bond and to investigate composite fracture mechanism. Research carried out by using one type of natural fibers are leaf fibers that have been woven agel with size 20x20 cm 6 plys while matrix using unsaturated polyester and epoxy. Methods of making composites using vacuum bagging. Tensile test conducted by Tensilon tensile test machine, the shape and size of the specimens in accordance with ASTM standard D 638. Based on the results of tensile tests showed that the tensile strength fiber composite leaf agel with epoxy matrix is 31 MPa higher tha...

Glass fiber composites were fabricated from two different manufacturing techniques, vacuum infusi... more Glass fiber composites were fabricated from two different manufacturing techniques, vacuum infusion and vacuum bag, two resin types (epoxy, vinyl ester), as well as and two fiber combinations (S-glass and E-glass). The analyzed properties were tensile modulus, strength as well as compression strength, with relation to sample morphology and fracture surface due to compression. The results showed that all variables and their interaction did not significantly influence tensile modulus, while manufacturing methods was the only significant variable influenced tensile strength. The results showed that vacuum infusion samples had better tensile strength than those produced by vacuum bag due to less resin and bubbles. In term of compression, the change on strength was highly contributed by resin type and fiber used on layer A. Composites samples with epoxy resin showed better strength than those of vinyl ester may be due to better initial resin property. While, imbalance transfer load and f...

Lecture Notes in Mechanical Engineering

The use of composite materials in UAV development has increased significantly. The chosen of comp... more The use of composite materials in UAV development has increased significantly. The chosen of composite material for the UAV structure is due to the advantage of composite both from the strength and the light side of material that good for improving structure performance because it can be reducing the weight of the structure. Nowadays, research in material not only focus on reducing weight but also focus on reducing undegradable waste to environment. Tensile test has been carried out for Cassava Peel/Lycal composite and E-Glass/Lycal Composite. The comparison results showed that the cassava/lycal composite has modulus elasticity average value (3445,3 ± 0.36 MPa) smaller than Hybrid Cassava Peel+E-Glass 135/Lycal Composite (4704.28 ±0,67 MPa) and E-Glass 135/Lycal Composite (5916,5 ± 1,24 MPa). This trend is happened also for tensile strength value with average 44,63 ± 5,11 MPa for Cassava Peel/Lycal, 143,01 ± 15,82 MPa for E Glass 135/Lycal composite and 109.68 ± 7,05 MPa for Hybrid Cassava Peel+E-Glass 135/Lycal Composite. This result showed that the strength of E Glass 135/Lycal Composite still much bigger than Cassava Peel/Lycal Composite with but not really higher than Hybrid Cassava Peel+E-Glass 135/Lycal Composite. It means the cassava composite can’t be the alternative material for UAV skin but it can be used for another part inside the UAV that not directly touching from outside impact.

NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020

The Composite are material consists of two or more materials which combine macroscopically, for n... more The Composite are material consists of two or more materials which combine macroscopically, for now the strength of the material, it must be test with various method which is represented by the specimen. On this paper will research about material sandwich Composite with flexural three-point bending and flatwise compressive test method. In manufactured generally Composite using vary method. Usually manufacturing uses hand lay-up, vacuum bagging, VARI method and other. In this research author will be use VARI method, the reason is VARI method has a low-cost process and more efficient. In this experiment was carried out on sandwich Composite using carbon fiber unidirectional 0⁰ , with aramid honeycomb core. Specimen and testing will be follow ASTM C365 standard which is flatwise testing standard, for specimen with lycal resin the results average is 56089.6 N Maximum load, 26.68 MPa Compressive of strength, 5.04 moduli of elasticity 5.04 MPa, while for specimen with Vinyl Ester resin the results average is 56089.6 MPa Maximum load, 26.68 MPa Compressive of the core strength, 5.04 MPa moduli of elasticity and Flexural three-point banding will be follow ASTM C393 standard which is Flexural testing standard. The Results of the specimen using Vinyl Ester resin is 1029.14 N maximum load, 13.78 MPa Facing stress, 861.94 moduli of elasticity.

PROCEEDINGS OF THE 3RD INTERNATIONAL SEMINAR ON METALLURGY AND MATERIALS (ISMM2019): Exploring New Innovation in Metallurgy and Materials