Answered: Tmak=10 kNm Tmin= 3 kNm Pmin= 0 Timin=…

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Tmak=10 kNm Tmin= 3 kNm Pmin= 0 Timin= 3 kNm Tmak=10 kNm

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter11: Columns

Section: Chapter Questions

Problem 11.2.15P: Repeat Problem 11.2-14 using L = 12 ft, ß = 0.25 kips/in., ßRl= 1.5ßL2, and ßR2= 2 ßR1.

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Concept explainers

Pressure Vessels

The term pressure vessel refers to a closed container that contains gas or liquid at a different pressure than environment pressure. The pressure vessels have a wide scale of applications in our day-to-day lives and other industrial places. Some common examples of pressure vessels are gas cylinders, autoclaves, compressor vessels, etc.

Question

The LPG tank with an inner diameter of 420 mm and a wall thickness of 2.2 mm in the figure operates under an internal pressure ranging from zero to 3.2 MPa. Also, an axially variable torsional moment of Tmax=10 kNm and Tmin=3 kNm is applied to the tank. The tank made of hot rolled steel sheet operates at ambient temperature. Accordingly, calculate the fatigue safety of the tank for 50% reliability? (yield strenght=460 Mpa,tensile strenght=520 Mpa)

Note=Since there is no notch effect in the cylindrical part of the tank, take all kf as 1. For 50% reliability, take kc = Axial * Torsion = 0.51. Take the size factor kb = 0.85.

Tmak=10 kNm
Tmin=3 kNm
Pmin= 0
Tmin= 3 kNm
Tmak=10 kNm

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