The A-36 steel drill shaft of an oil well extends 12000 ft into the ground. The pipe used to drill the well is suspended freely from the derrick at A. ( Figure 1) The shaft consists of three different sizes of pipe, AAB = 3.00 in.2. ABC = 1.90 in.², and ACD 1.35 in.², each having the length and weight per unit length indicated. Determine the maximum average normal stress in pipe string AB. Express your answer to three significant figures and include appropriate units. Figure Алв WAB=3.2 lb/ft 5000 ft B НА ? ΤΑ Value Units Submit Request Answer Submit Part B Determine the maximum average normal stress in pipe string BC. Express your answer to three significant figures and include appropriate units. με ? ов Value Units Submit Request Answer 1 of 1 Part C Determine the maximum average normal stress in pipe string CD Express your answer to three significant figures and include appropriate units. ABC WBC= 2.8 lb/ft 5000 ft με ? ACD 2000 ft σC= Value Units WCD = 2.0 lb/ft

The A-36 steel drill shaft of an oil well extends 12000 ft into the ground. The pipe used to drill the well is suspended freely from the derrick at A. ( Figure 1) The shaft consists of three different sizes of pipe, AAB = 3.00 in.2. ABC = 1.90 in.², and ACD 1.35 in.², each having the length and weight per unit length indicated. Determine the maximum average normal stress in pipe string AB. Express your answer to three significant figures and include appropriate units. Figure Алв WAB=3.2 lb/ft 5000 ft B НА ? ΤΑ Value Units Submit Request Answer Submit Part B Determine the maximum average normal stress in pipe string BC. Express your answer to three significant figures and include appropriate units. με ? ов Value Units Submit Request Answer 1 of 1 Part C Determine the maximum average normal stress in pipe string CD Express your answer to three significant figures and include appropriate units. ABC WBC= 2.8 lb/ft 5000 ft με ? ACD 2000 ft σC= Value Units WCD = 2.0 lb/ft

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter9: Moments And Products Of Inertia Of Areas

Section: Chapter Questions

Problem 9.16P: Figure (a) shows the cross-sectional dimensions for the structural steel section known as C1020...

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