4. A wood post 12 in. by 12 in. is braced by four steel angles. The wood post and the pieces of angles are exactly the same length of 20 feet. The reinforced post carries a total compressive load of 200 kips. For steel: E = 29 x 10^3 ksi, for wood: Area = 0.938 sq. in., E = 1.9 x 10^3 ksi a. Find the axial stress (in kips) in the steel. b. Find the axial stress in the wood. VERS c. Find the deformation (in inches) if the length of the reinforced post is 12 ft.

4. A wood post 12 in. by 12 in. is braced by four steel angles. The wood post and the pieces of angles are exactly the same length of 20 feet. The reinforced post carries a total compressive load of 200 kips. For steel: E = 29 x 10^3 ksi, for wood: Area = 0.938 sq. in., E = 1.9 x 10^3 ksi a. Find the axial stress (in kips) in the steel. b. Find the axial stress in the wood. VERS c. Find the deformation (in inches) if the length of the reinforced post is 12 ft.

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 2.8.7P: A weight W = 4500 lb falls from a height h onto a vertical wood pole having length L = 15 ft,...

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