Investigation of Stresses in U-Shaped Metal Bellow Using EJMA Standards

الموضوعات :

Kondapalli Siva Prasad ¹ (Department of Mechanical Engineering, Anil Neerukonda Institute of Technology & Sciences, India)
Gudla Pavani ² (Department of Mechanical Engineering, Anil Neerukonda Institute of Technology & Sciences, India)

تاريخ الإرسال : 07 الخميس , ربيع الثاني, 1438 تاريخ التأكيد : 08 الأحد , جمادى الأولى, 1438 تاريخ الإصدار : 02 الخميس , ذو الحجة, 1438

الکلمات المفتاحية: Expansion joints, Metal bellow, EJMA,

ملخص المقالة :

Metal Bellows finds wide application in expansion joints, which are used in aerospace, chemical plants, power system, heat exchangers, automotive vehicle parts, piping system, petrochemical plant, refineries, etc. During service they are subjected to various stresses and exposed to different environments, which leads to failure. Hence there is a need for proper design of metal bellow as per the application. The main objective of the paper is to evaluate the stresses generated in the metal bellow and the cycle life working at different working pressures. In this paper, the stresses are calculated using Expansion Joint Manufacturing Association (EJMA) standards and compared with the results obtained using ANYS software for two different materials namely Inconel 625 and Inconel 718 for the pressure values ranging from 20 to 40 bar.

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