This article aims to study the effect of pressure on rocket motor case by Finite Element Method simulation to select optimal material in rocket motor manufacturing process. In this study, cylindrical tubes with outside diameter of 122 mm and thickness of 3 mm are used for simulation. Defined rocket motor case materials are AISI4130, AISI1026, AISI1045, AL2024 and AL7075. Internal pressure used for the simulation is 22 MPa.<\/p>\r\n\r\n

The result from Finite Element Method shows that at a pressure of 22 MPa rocket motor case produced by AISI4130, AISI1045 and AL7075 can be used. A comparison of the result between AISI4130, AISI1045 and AL7075 shows that AISI4130 has minimum principal stress and confirm the results of Finite Element Method by the used of calculation method found that, the results from Finite Element Method has good reliability.<\/p>\r\n","references":"[1]\tDenis Moss, \"Pressure Vessel Design Manual\u201d, Third edition, Gulf Professional Published, 2004.\r\n[2]\tGeorge E. Dieter, \"Mechanical Metallurgy\u201d, McGraw-Hill Book Company, 1988.\r\n[3]\tPramote T, \"Finite Element in Engineering\u201d, Chulalongkorn Publishing, 1999.\r\n[4]\tBruce L. Bramfitt, \"Structure\/Property Relationship in Irons and Steels\u201d ASM Handbook, 1997, Pages 357-382.\r\n[5]\tB209M-10, \"Standard Specification for Aluminum and Aluminum- Alloy Sheet and Plate (Metric)\u201d, ASTM, 2012.\r\n[6]\tHuei-Huang Lee. \"Finite Element Simulations with ANSYS Workbench 14\u201d, ISBN : 978-1-58503-725-4, SDC Publications.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 93, 2014"}