Stress Analysis of Thick-Walled Cylinder for Rocket Motor Case under Internal Pressure

Wibawa, Lasinta Ari Nendra; Diharjo, Kuncoro; Raharjo, Wijang Wisnu; Jihad, Bagus H.

doi:10.37934/arfmts.70.2.106115

Cited by 17 publications

(11 citation statements)

References 5 publications

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“…This would mean that radial stress increases linearly when subjected to thermal and structural loadings [15]. As the thickness of the radius of the casing increases, the values of radial stress are more stretched out; hence, it shows no significant deformation on the structure [16]. In accordance with Lamé's Theory, radial stress is the highest in compression at the inner wall of the casing [17].…”

Section: Overall Radial Stress Of CC 25 Cc 35 and Cc 50mentioning

confidence: 75%

Finite Element Analysis for Rocket Motor Case Under Internal Pressure and Thermal Loads

Muhammad¹,

Salleh²,

Sujana³

et al. 2022

JAEDS

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Rocket motor combustion chamber need to contain very high pressure and temperature due to burning of rocket fuels. Although for small rocket the burning time in the combustion chamber are short about 1 to 5 seconds it is very important to make sure that the combustion chamber can hold the pressure and heat produced by the burning of the fuels. Even with a very strong material of combustion chamber and the analysis proof that the chamber is able to stand the high pressure produced there are high probability of structural failure due to the increase of temperature due to heat into the combustion chamber wall since the increasing temperature of the combustion chamber wall will decrease the strength of the material. In this study the thermal analysis was done using ANSYS software with various thickness from CC 2.5, CC 3.5 and C.C 5.0 in two condition which are the stress due to static stress and the stress due to static stress and thermal stress. The propellant properties, pressure applied, chamber temperature and heat coefficient are the same in all cases. Then the results for the different thickness stress at the wall are plotted and compared. The study shows that the results due to then static stress and overall stress with different combustion chamber thickness for the radial stress show no significant differences. While the hoop stress and von-Mises stress due to static stress are maximum at inner wall and decrease as the direction of the wall increase from the inside. In other cases where the static and thermal stress are applied, the highest stress is at the outer wall of the cylinder. The higher combustion chamber thickness, the lower hoop stress and von-Mises stress need applied to the combustion chamber wall. Thus, results in higher safety factor for the higher combustion chamber thickness.

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Section: Overall Radial Stress Of CC 25 Cc 35 and Cc 50mentioning

confidence: 75%

Finite Element Analysis for Rocket Motor Case Under Internal Pressure and Thermal Loads

Muhammad¹,

Salleh²,

Sujana³

et al. 2022

JAEDS

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“…Panjang tabung roket juga sangat menentukan berapa banyak bahan bakar yang dibawa oleh roket Dextrose. Selain panjang tabung roket dan radius fillet, faktor lain seperti ketebalan cap, ketebalan dinding, dan tekanan internal roket juga mempengaruhi nilai tegangan von Mises maksimumnya [9]- [11]. Pada penelitian ini, ketebalan dinding, ketebalan cap, dan tekanan internal roket Dextrose konstan.…”

Section: Pendahuluanunclassified

Pengaruh Panjang Tabung dan Radius Fillet Terhadap Faktor Keamanan Tabung Motor Roket Dextrose Menggunakan Ansys Workbench

et al. 2021

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Tabung motor roket merupakan komponen utama pada roket Dextrose. Makalah ini bertujuan untuk menyelidiki pengaruh panjang tabung dan radius fillet terhadap faktor keamanan tabung motor roket dextrose menggunakan Ansys Workbench. Tabung roket Dextrose menggunakan material Al 6063-T5 dengan diameter luar 32 mm, ketebalan dinding 3 mm, dan tekanan internal 5 MPa. Panjang tabung roket divariasikan 200, 250, 300, dan 350 mm. Radius fillet menggunakan variasi 3, 4, dan 5 mm. Analisis dilakukan menggunakan metode elemen hingga dengan bantuan Ansys Workbench. Hasil simulasi menunjukkan bahwa faktor keamanan tidak berpengaruh signifikan terhadap perubahan panjang tabung roket. Faktor keamanan meningkat seiring peningkatan radius fillet.

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“…Tekanan internal dan ketebalan dinding merupakan faktor yang berpengaruh terhadap tegangan von Mises maksimum pada silinder yang menggunakan prinsip bejana tekan [7]- [9]. Selain tekanan internal dan ketebalan dinding, faktor lain seperti ketebalan cap roket dan radius fillet juga berpengaruh terhadap tegangan von Mises maksimum [9]- [11].…”

Section: Pendahuluanunclassified

Pengaruh Ketebalan Dinding Dan Tekanan Internal Terhadap Faktor Keamanan Tabung Motor Roket Dextrose Menggunakan Ansys Workbench

Wibawa

Yudhotomo

Haryanto

et al. 2021

mesin

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Salah satu komponen penting pada roket Dextrose adalah tabung motor roket. Penelitian ini bertujuan untuk merancang tabung motor roket Dextrose yang mampu menahan tekanan internal 5 MPa. Pada penelitian ini, desain tabung roket Dextrose menggunakan silinder berdinding tebal dengan diameter luar 32 mm, radius fillet 2 mm, dan panjang 200 mm. Variasi ketebalan dinding yang digunakan yaitu 2 mm, 2.5 mm, dan 3 mm. Tekanan internal divariasikan mulai dari 1, 2, 3, 4, dan 5 MPa. Material yang digunakan dalam penelitian yaitu Aluminium 6063-T5. Analisis tegangan statik dilakukan dengan bantuan perangkat lunak Ansys Workbench. Hasil simulasi Ansys menunjukkan bahwa tabung motor roket dengan ketebalan 3 mm mampu menahan tekanan internal hingga 5 MPa karena memiliki faktor keamanan lebih dari 2, yaitu 2.58. Perbandingan nilai tegangan Longitudinal dan Hoop maksimum antara simulasi Ansys Workbench dan perhitungan analitik digunakan untuk validasi hasil penelitian. Persentase kesalahan antara simulasi Ansys Workbench dan perhitungan analitik kurang dari 0.5 persen.

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Stress Analysis of Thick-Walled Cylinder for Rocket Motor Case under Internal Pressure

Cited by 17 publications

References 5 publications

Finite Element Analysis for Rocket Motor Case Under Internal Pressure and Thermal Loads

Finite Element Analysis for Rocket Motor Case Under Internal Pressure and Thermal Loads

Pengaruh Panjang Tabung dan Radius Fillet Terhadap Faktor Keamanan Tabung Motor Roket Dextrose Menggunakan Ansys Workbench

Pengaruh Ketebalan Dinding Dan Tekanan Internal Terhadap Faktor Keamanan Tabung Motor Roket Dextrose Menggunakan Ansys Workbench

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