The normal strain in a suspended bar of material of varying cross section due to its own weight is given by the expression yy/3E wherey = 2.8 lb/in.3 is the specific weight of the material, y = 2.0 in. is the distance from the free (i.e., bottom) end of the bar, L = 20 in. is thelength of the bar, and E= 29000 ksi is a material constant. Determine,(a) the change in length of the bar due to its own weight.(b) the average normal strain over the length L of the bar.(c) the maximum normal strain in the bar.Part 1Your answer is correct.Calculate the change in length of the bar due to its own weight.Answer:6 = 6.436eTextbook and MediaPart 2* Your answer is incorrect.Calculate the average normal strain over the length of the bar.Answer:Eavi 3.22x10-6 in.eTextbook and MediaSave for LaterμεAttempts: 1 of 5 usedAttempts: 2 of 5 usedPart 3The parts of this question must be completed in order. This part will be available when you complete the part above.Submit Answer

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The normal strain in a suspended bar of material of varying cross section due to its own weight is given by the expression yy/3E where y= 2.8 lb/in.3 is the specific weight of the material, y = 2.0 in. is the distance from the free (i.e., bottom) end of the bar, L = 20 in. is the length of the bar, and E = 29000 ksi is a material constant. Determine, (a) the change in length of the bar due to its own weight. (b) the average normal strain over the length L of the bar. (c) the maximum normal strain in the bar.

The normal strain in a suspended bar of material of varying cross section due to its own weight is given by the expression yy/3E where y= 2.8 lb/in.3 is the specific weight of the material, y = 2.0 in. is the distance from the free (i.e., bottom) end of the bar, L = 20 in. is the length of the bar, and E = 29000 ksi is a material constant. Determine, (a) the change in length of the bar due to its own weight. (b) the average normal strain over the length L of the bar. (c) the maximum normal strain in the bar.

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 2.7.5P: Determine the strain energy per unit volume (units of psi) and the strain energy per unit weight...

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