A steel cylinder head is connected to a grade 30 cast-iron pressure vessel using Nú bolts, as shown in Fig. 2. The cylinder stores gas at a maximum pressure pg = 3000 psi. The thickness of the cylinder head is t = 0.5 in, the diameter of the cylinder is de = 3.5 in, and the diameter of the bolt circle is dúc = 6 in. Also, tp = 1.5 in. It has been decided to use 3/8-16 UNC bolts without washers. You may assume a permanent connection. a. Determine a suitable length for the bolt rounded up to the nearest ¼ in. b. Select the appropriate SAE bolt grade and determine the number of bolts required in order to satisfy the following requirements: • The yielding factor of safety is at least 1.05. • The joint separation factor is at least 2.0. The maximum center-to-center distance between bolts is four bolt diameters. dpe de

A steel cylinder head is connected to a grade 30 cast-iron pressure vessel using Nú bolts, as shown in Fig. 2. The cylinder stores gas at a maximum pressure pg = 3000 psi. The thickness of the cylinder head is t = 0.5 in, the diameter of the cylinder is de = 3.5 in, and the diameter of the bolt circle is dúc = 6 in. Also, tp = 1.5 in. It has been decided to use 3/8-16 UNC bolts without washers. You may assume a permanent connection. a. Determine a suitable length for the bolt rounded up to the nearest ¼ in. b. Select the appropriate SAE bolt grade and determine the number of bolts required in order to satisfy the following requirements: • The yielding factor of safety is at least 1.05. • The joint separation factor is at least 2.0. The maximum center-to-center distance between bolts is four bolt diameters. dpe de

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter2: Axially Loaded Members

Section: Chapter Questions

Problem 2.2.9P: A safety valve on the top of a tank containing steam under pressure p has a discharge hole of...

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Q3- A steel pressure vessel is sealed by a steel gasketed cap fastened with 8 preloaded bolts as shown in figure below. The cylinder stores gas at a maximum pressure Pg=1200 psi. The thickness of the gasketed cap is te =0.5 in, the diameter of the cylinder is d. = 3.25 in, and the diameter of the bolt circle is d=5.5 in. Also, tp-0.5 in. It has been decided to use 7/16 -14 UNC 5/4 (L=bolt length) SAE Grade 8 hex-head bolts with washer. You may assume a non-permanent connection. Determine the load factor ni, and the joint separation factor no. (Elasticity modulus for steel, Esteel=30 Mpsi) Note: P (load per bolt) = Pg AJN, where A, is the area of the cylinder. dpc
Q3- A steel pressure vessel is sealed by a steel gasketed cap fastened with 8 preloaded bolts as shown in figure below. The cylinder stores gas at a maximum pressure Pg=1200 psi. The thickness of the gasketed cap is te =0.5 in, the diameter of the cylinder is d. = 3.25 in, and the diameter of the bolt circle is db=5.5 in. Also, tp-0.5 in. It has been decided to use 7/16 -14 UNC 5/4 (L=bolt length) SAE Grade 8 hex-head bolts with washer. You may assume a non-permanent connection. Determine the load factor nL, and the joint separation factor no. (Elasticity modulus for steel, Esteel=30 Mpsi) Note: P (load per bolt) = Pg AJN, where A, is the area of the cylinder. dpc
take a= 1 b=0 c=2
Need help with engineering Materials review problem
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The figure gives the cross-section of a grade 25 cast-iron pressure vessel. A total of N bolts are to be used to resist a separating force of 150 kN. (a) Determine kb, km, and C. (b) Find the number of bolts required for a load factor of 2 where the bolts may be reused when the joint is taken apart. (c) With the number of bolts obtained in part (b), determine the realized load factor for overload, the yielding factor of safety, and the load factor for joint separation. Use (SI) units as it applies
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Figure illustrates the connection of a cylinder head to a pressure vessel using 10 bolts and a confined-gasket seal. The effective sealing diameter is 150 mm. D = 20 mm (E = 207 GPa), and F = 25 mm (E = 100 GPa). The cylinder is used to store gas at a static pressure of 6 MPa. Bolts with a diameter of 12 mm, a = 30°, pitch of 1.75 mm, nut thickness H = 14 mm, At = 84.3 mm?, W = 18 mm have been selected. (a) Find the bolt spring rate kp (use E = 207 GPa). (b) Find the upper, central and lower frustrum stiffness per bolt (c) Find the member spring rate km