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All Journal Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin
Catur, A.D.
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Aerospace Engineering Automotive Engineering Mechanical Engineering Physics

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Sifat tekan komposit sandwich dengan inti beton cellular diperkuat pin bambu sebagai bahan panel ringan Catur, A.D.; Sutanto, R.; Salman, S.; Sari, N.H.; Wijana, M.; Prijaya, M.T.
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 13, No 1 (2023): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v13i1.591

Abstract

Cellular lightweight concrete as sandwich composite core has the advantage of its density, with the presence of foam which makes it lighter. However, the presence of foam reduces its strength. Reinforcement with bamboo pins was carried out to increase the compressive strength of the sandwich composite. Bamboo pins connecting the composite skin reinforce the cellular lightweight concrete at an angle of 900, 700,650 to the composite skin. With the addition of bamboo pins, it increases the compressive strength of the sandwich composite in both flat and edge directions.
Simulasi Pengaruh Jumlah Palang Rim Sepeda Motor Terhadap Equivalent von Mises stress dan Safety Factor Menggunakan Software Ansys Dwilingga, I.; Sugiman, S.; Catur, A.D.
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 14, No 1 (2024): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v14i1.786

Abstract

Rim or wheels have various types of model designs and the number of spokes. Therefore, those wheels can have a different response on each rim model when subjected to loads such as impact loads. In this simulation, impact load testing is carried out on the rim, with variations of 4 types of geometry where this geometry differs in the design of the number of spokes. By finding the Safety Factor value on each rim,  the most optimal rim design can be determined. Explicit Dynamics can solve this problem because the impact on the simulation occurs in a very short time. In this study, the design of a cast wheel type motorcycle rim with spokes number of 5, 6, 10 and 12 with a uniformly applied impact speed of 10 km/h. The rim material used was aluminum 6061 T6 and the projectile material used was aluminum alloy. The designed rim has a diameter of 35.56 cm and a width of 4.01 cm and a mass of 2415 gram. Solidworks and Ansys software based on the finite element method were used to make it easier to design cast wheel rims. By using this software, the rim can be designed so that it can be analyzed for stresses and strains that occur when simulating impact loads on the rim plane. The simulation results show that rims with spoke 10 and 12 are categorized as safe because they have a lower average stress value than rims 5 and 6 and have a Safety Factor value above 1. In other words, rims with 10 and 12 number of spokes are the optimal design in terms of cost and strength.
Karakteristik tekan, bending dan morphology komposit mortar ringan diperkuat serat limbah tekstil Sari, N.H.; Suteja, S.; Catur, A.D.; Jaya, D.P.
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 13, No 1 (2023): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v13i1.593

Abstract

The composites was made from a foam mortar matrix with Hydrolized protein reinforced textile waste fiber and the compressive strength, flexural strength and fracture morphology characteristics of the composite have been reported. This study investigated the effectiveness of adding textile fiber waste to lightweight mortar composites to improve the mechanical characteristics of the composites, reduce weight and minimize production costs of mortar composites. Mortar composites are fabricated by varying the volume fraction of textile waste fiber from 0 to 1.2% (of the composite density). The results revealed that the addition of textile waste fiber to the mortar composites decreased bending strength and bending modulus. The maximum compressive strength of the mortar composite was obtained at a volume fraction of 0.6% textile fiber waste (0.30167 MPa) and the lowest compressive strength of 0.149 MPa was owned by the mortar composite without textile fiber waste (composite BTA). This phenomenon caused by the fiber pull out, interface bond between textile waste fiber and matrix, as shown from the SEM photo. The addition of excess textile fiber waste from optimal conditions reduces mechanical performance due to increased voids in the mortar composite. However, this strategy helpful to reduce the weight of the concrete, reduce production costs and reduce textile waste.
Effect of the addition of backing support plates on the shear strength of aluminium and steel adhesively bonded joints Putra, A.I.; Sugiman, S.; Catur, A.D.; Ahmad, H.
Dinamika Teknik Mesin Vol 15, No 2 (2025): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v15i2.1080

Abstract

The use of adhesive joints has been increasing in joining metallic and non-metallic materials due to advantages such as homogeneous stress distribution and a smooth surface appearance. This study aims to analyze the effect of support plates on the shear strength of aluminium and steel adhesively bonded joints. The position of the  support plates was studied within the overlap area. Experimental testing was carried out using single lap joint specimens per ASTM D1002. Finite element modelling was also carried out using Abaqus software to analyze the stress distribution in the adhesive layer. The experiment results showed that the addition of the support plates did not increase the shear strength of the joint, but instead tended to decrease it. The strength of aluminium joints with support plates at a distance of 3.125 mm from the end of the lap of the joint decreased by 62%, while the strength of steel joints decreased by about 38%. Finite element modelling results show that von Mises stress at the end of the lap joint decreased with the addition of support plates.
Sifat tekan komposit sandwich dengan inti beton cellular diperkuat pin bambu sebagai bahan panel ringan Catur, A.D.; Sutanto, R.; Salman, S.; Sari, N.H.; Wijana, M.; Prijaya, M.T.
Dinamika Teknik Mesin Vol 13, No 1 (2023): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v13i1.591

Abstract

Cellular lightweight concrete as sandwich composite core has the advantage of its density, with the presence of foam which makes it lighter. However, the presence of foam reduces its strength. Reinforcement with bamboo pins was carried out to increase the compressive strength of the sandwich composite. Bamboo pins connecting the composite skin reinforce the cellular lightweight concrete at an angle of 900, 700,650 to the composite skin. With the addition of bamboo pins, it increases the compressive strength of the sandwich composite in both flat and edge directions.
Simulasi Pengaruh Jumlah Palang Rim Sepeda Motor Terhadap Equivalent von Mises stress dan Safety Factor Menggunakan Software Ansys Dwilingga, I.; Sugiman, S.; Catur, A.D.
Dinamika Teknik Mesin Vol 14, No 1 (2024): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v14i1.786

Abstract

Rim or wheels have various types of model designs and the number of spokes. Therefore, those wheels can have a different response on each rim model when subjected to loads such as impact loads. In this simulation, impact load testing is carried out on the rim, with variations of 4 types of geometry where this geometry differs in the design of the number of spokes. By finding the Safety Factor value on each rim,  the most optimal rim design can be determined. Explicit Dynamics can solve this problem because the impact on the simulation occurs in a very short time. In this study, the design of a cast wheel type motorcycle rim with spokes number of 5, 6, 10 and 12 with a uniformly applied impact speed of 10 km/h. The rim material used was aluminum 6061 T6 and the projectile material used was aluminum alloy. The designed rim has a diameter of 35.56 cm and a width of 4.01 cm and a mass of 2415 gram. Solidworks and Ansys software based on the finite element method were used to make it easier to design cast wheel rims. By using this software, the rim can be designed so that it can be analyzed for stresses and strains that occur when simulating impact loads on the rim plane. The simulation results show that rims with spoke 10 and 12 are categorized as safe because they have a lower average stress value than rims 5 and 6 and have a Safety Factor value above 1. In other words, rims with 10 and 12 number of spokes are the optimal design in terms of cost and strength.
Karakteristik tekan, bending dan morphology komposit mortar ringan diperkuat serat limbah tekstil Sari, N.H.; Suteja, S.; Catur, A.D.; Jaya, D.P.
Dinamika Teknik Mesin Vol 13, No 1 (2023): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v13i1.593

Abstract

The composites was made from a foam mortar matrix with Hydrolized protein reinforced textile waste fiber and the compressive strength, flexural strength and fracture morphology characteristics of the composite have been reported. This study investigated the effectiveness of adding textile fiber waste to lightweight mortar composites to improve the mechanical characteristics of the composites, reduce weight and minimize production costs of mortar composites. Mortar composites are fabricated by varying the volume fraction of textile waste fiber from 0 to 1.2% (of the composite density). The results revealed that the addition of textile waste fiber to the mortar composites decreased bending strength and bending modulus. The maximum compressive strength of the mortar composite was obtained at a volume fraction of 0.6% textile fiber waste (0.30167 MPa) and the lowest compressive strength of 0.149 MPa was owned by the mortar composite without textile fiber waste (composite BTA). This phenomenon caused by the fiber pull out, interface bond between textile waste fiber and matrix, as shown from the SEM photo. The addition of excess textile fiber waste from optimal conditions reduces mechanical performance due to increased voids in the mortar composite. However, this strategy helpful to reduce the weight of the concrete, reduce production costs and reduce textile waste.
Co-Authors Dwilingga, I. H. Ahmad Jaya, D.P. M. Wijana, M. N.H. Sari Prijaya, M.T. Putra, A.I. S. Salman, S. Sugiman . Sutanto, R. Suteja, S.