Stress analysis of ribbed flanges |
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| Affiliation: | 1. State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining & Technology, Xuzhou 221116, China;2. Department of Mining Engineering & Metallurgical Engineering, Western Australian School of Mines, Curtin University, Kalgoorlie 6430, Australia;3. School of Mechanics and Civil Engineering, China University of Mining & Technology, Xuzhou 221116, China;1. Department of Civil Engineering, Isfahan University of Technology, 84156-83111 Isfahan, Iran;2. Department of Civil and Environmental Engineering and Construction, University of Nevada Las Vegas, 4505 S. Maryland Pkwy, Las Vegas, NV 89154, USA;1. Facultad de Ingeniería, Universidad Autónoma de Chiapas, Campus-I, Blvd. Belisario Domínguez, kilómetro 1081, S/N, Col. Terán, 29050, Tuxtla Gutiérrez, Chiapas, Mexico;2. Departamento de Materiales, Universidad Autónoma Metropolitana, Edificio P4, Último Piso, Av. San Pablo 180, Col. Reynosa Tamaulipas, 02200 México, D.F., Mexico |
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| Abstract: | In this paper an attempt is made to study the role of stiffening ribs on the behaviour of flanges. Shell theory is resorted to in developing the ribbed shell equations. A shell element with stiffening ribs in the meridional direction is obtained by superposing the stress resultants of a grid shell with the stress resultants of a isotropic shell element. A case of unequal bolt loads is considered by expressing them as Fourier series in the circumferential direction. The effect of varying the rib parameters like rib height, number, etc. is studied. The finite-difference method of solution is adopted. The behaviour of a ribbed flange is found to be similar to that of a taper hub flange. |
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