PSI - Issue 27

Bernardus Plasenta Previo Caesar et al. / Procedia Structural Integrity 27 (2020) 117–124 Caesar et al. / Structural Integrity Procedia 00 (2019) 000 – 000

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MPa. The tables indicate that the most tensile strength with cross-sectional area value generates small results in displacement and maximum stress (Caesar et al., 2020). The previous work has the smallest results in 2 various scenarios. The lightweight, which has the second tensile strength value, the simulation results shows that the value is higher than the standard type. It occurs due to the cross-sectional area as the other factor of distribution load. The lightweight cross-sectional area is smaller than the standard type, as shown in Fig. 1. The standard type is the typical type of industrial use. The different properties of the ultimate tensile strength between the standard type and lightweight type are 20 MPa; it is not much than the economy type. The last type is the economy type of the smaller ultimate tensile strength with 90 MPa difference points than the standard type. Although the cross-sectional area of economy type and standard type are the same, the ultimate tensile strength of economy type and standard type has more than difference than standard type and lightweight type. 5. Conclusions The frame of the auto-checking hardness machine has been investigated its static strength through finite element simulation. From the results of the simulation, it can be concluded that the excellent type of aluminum frame has good loads resistance proved by the comparison of previous work and current work. There are two factors of loads distribution on the beam that discussed on this work: ultimate tensile strength properties and cross-sectional area. The lightweight type that has more ultimate tensile strength has not a good number than the standard type because of the different cross-sectional areas of lightweight and standard type. Despite the cross-sectional area of lightweight type and economy type are the same, the static simulation results show a different number because of the difference ultimate tensile strength properties of lightweight and economy type. However, all types of aluminum frames can be used to hold the machine due to all type has an excellent safety factor point. Currently, the further comparison of aluminum frame type is based on the cost range, needs, and material availability. In case the industry needs the light frame or the sturdy frame, it will be on the lightweight type for the lighter frame and high-rigidity type for a sturdy frame. References ASTM International, 2019. Standard Test Methods ASTM-E18 for Rockwell Hardness of Metallic Materials, American National Standard. Bae, D.M., Prabowo, A.R., Cao, B., Zakki, A.F., Haryadi, G.D., 2016. Study on collision between two ships using selected parameters in collision simulation. Journal of Marine Science and Application 15, 63-72. 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A novel hybrid shell element formulation (QUAD+ and TRIA+): A benchmarking and comparative study Finite Elements in Analysis and Design 166, 103319. Hong, C.C., Chang, C.L., Lin, C.Y., 2016. Static structural analysis of great five-axis turning-milling complex CNC machine Engineering Science and Technology, an International Journal 19, 1971-1984. Hidayat, T., Nazarudin, T., Syafri, S., 2017. Perancangan dan Analisis Statik Chassis Kendaraan Shell Eco-Marathon Tipe Urban Concept Jurnal Online Mahasiswa Fakultas Teknik, Universitas Riau 4, 1-6. Misumi, 2019. Misumi Aluminum Frame, Misumi USA, Schaumburg, US. Prabowo, A.R., Bae, D.M., Sohn, J.M., Zakki, A.F., Cao, B., Cho, J.H., 2017. Effects of the rebounding of a striking ship on structural crashworthiness during ship-ship collision. Thin-Walled Structures 115, 225-239. Prabowo, A.R., Baek, S.J., Lee, S.G., Bae, D.M., Sohn, J.M., Bahatmaka, A., Samuel, S., 2018. Impact phenomena assessment: Part II – Buffer container as a measure to reduce cargo leakage in collision. MATEC Web of Conferences 159, 02055. Prabowo, A.R., Putranto, T., Sohn, J.M., 2019. Simulation of the behaviour of a ship hull undergrounding: Effect of applied element size on structural crashworthiness. Journal of Marine Science and Engineering 7, 270. Wilson, 2010. Rockwell Hardness Tester. Wilson Mechanical Instrument Co. Inc, New York, US.