Engineering

Mechanical EngineeringMechanics of Materials (MindTap Course List)2.4-11 Three steel cables jointly support a load of 12 kips (see figure). The diameter of the middle cable is 3/4 in. and the diameter of each outer cable is 1/2 in. The tensions in the cables are adjusted so that each cable carries one-third of the load (ie., 4 kip). Later, the load is increased by 9 kips to a total load of 21 kips. (a) What percent of the total load is now carried by the middle cable? (b) What are the stresses cr v and 0 in the middle and outer cables, respectively? Note: See Table 2-1 in Section 2.2 for properties of cables.BuyFind*arrow_forward*

9th Edition

Barry J. Goodno + 1 other

Publisher: Cengage Learning

ISBN: 9781337093347

Chapter 2, Problem 2.4.11P

Textbook Problem

2.4-11 Three steel cables jointly support a load of 12 kips (see figure). The diameter of the middle cable is 3/4 in. and the diameter of each outer cable is 1/2 in. The tensions in the cables are adjusted so that each cable carries one-third of the load (ie., 4 kip). Later, the load is increased by 9 kips to a total load of 21 kips.

(a) What percent of the total load is now carried by the middle cable?

(b) What are the stresses *cr _{v}*and

Expert Solution

**(a)**

To determine

The percentage of the total load is carried by the middle cable.

**Given Information:** Three steel cables jointly support a load as shown in figure:

Total Load = 12 kips.

Diameter of outer cables

Diameter of middle cable

Elongation of middle cable due to additional load of 9 kips should match with that of outer cable.

For the steel substance the Area of outer cable is:

And Area of middle cable

Now, Let P = 9 kips( additional load)

Expert Solution

**(b)**

To determine

The stresses

Mechanics of Materials (MindTap Course List)

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