The normal strain in a suspended bar of material of varying cross section due to its own weight is given by the expression vy/3E where y = 2.3 lb/in.³ is the specific weight of the material, y = 0.8 in. is the distance from the free (i.e., bottom) end of the bar, L = 8 in. is the length of the bar, and E = 23000 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 vy/3E where y = 2.3 lb/in.³ is the specific weight of the material, y = 0.8 in. is the distance from the free (i.e., bottom) end of the bar, L = 8 in. is the length of the bar, and E = 23000 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
Chapter7: Analysis Of Stress And Strain
Section: Chapter Questions
Problem 7.7.26P: - 7.2-26 The strains on the surface of an experiment al device made of pure aluminum (E = 70 GPa. v...
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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 vy/3E
where y = 2.3 lb/in.³ is the specific weight of the material, y = 0.8 in. is the distance from the free (i.e., bottom) end of the bar, L
= 8 in. is the length of the bar, and E = 23000 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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fea6547cd-a81b-4a05-903d-5ac71312003a%2Ff1293d4e-2c36-466c-9d7f-9e411a88a1af%2Fyyerfdi_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The normal strain in a suspended bar of material of varying cross section due to its own weight is given by the expression vy/3E
where y = 2.3 lb/in.³ is the specific weight of the material, y = 0.8 in. is the distance from the free (i.e., bottom) end of the bar, L
= 8 in. is the length of the bar, and E = 23000 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.
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Calculate the average normal strain over the length of the bar in με.
![Calculate the average normal strain over the length of the bar.
Answer:
Eavg
11
i
WE
με](https://content.bartleby.com/qna-images/question/ea6547cd-a81b-4a05-903d-5ac71312003a/6fbcc8d9-301d-47d4-b976-5a3fdb6a48d7/zcjeqdi_thumbnail.jpeg)
Transcribed Image Text:Calculate the average normal strain over the length of the bar.
Answer:
Eavg
11
i
WE
με
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