3 A bar of 30 mm diameter is subjected to a pull of 60 kN. The measured extension on gauge length of 200 mm is 0.09 mm and the change in diameter is 0.0039 mm. Cal- culate the Poisson's ratio and the values of the three
3 A bar of 30 mm diameter is subjected to a pull of 60 kN. The measured extension on gauge length of 200 mm is 0.09 mm and the change in diameter is 0.0039 mm. Cal- culate the Poisson's ratio and the values of the three
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![00:44
allll
PRACTICE QUESTIONS_GET 214-CLASS 1-2-3.pdf
6
A steel bar 300 mm long, 50 mm wide and 12 mm thick is subjected to an axial pull of 84 kN. Find the
change in length, width, thickness and volume of the bar. Take E = 200 GN/m? and Poisson's ratio =
0.32.
ôt = 0.0027 mm (decrease), ôV = 45.36 mm' (increase)]
7 A rectangular block 250 mm x 100 mm x 80 mm is subjected to axial loads as follows :
480 kN (tensile) in the direction of its length.
900 kN (tensile) on the 250 mm x 80 mm faces.
1000 kN (compressive) on the 250 mm x 100 mm faces.
Taking E = 200 GN/m2 and Poisson's ratio as 0.25 find
the following :
(i) Change in volume of the block.
(ii) Values of the modulus of rigidity and bulk modulus
for material of the block.
A bar of 30 mm diameter is subjected to a pull of 60 kN.
The measured extension on gauge length of 200 mm is
0.09 mm and the change in diameter is 0.0039 mm. Cal-
culate the Poisson's ratio and the values of the three
modulii.
2 of 2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F96b21fbf-a7fe-4a62-8b9a-678356b05a10%2F970f7966-d9be-4848-bf13-417fe690ef16%2F7e3wztg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:00:44
allll
PRACTICE QUESTIONS_GET 214-CLASS 1-2-3.pdf
6
A steel bar 300 mm long, 50 mm wide and 12 mm thick is subjected to an axial pull of 84 kN. Find the
change in length, width, thickness and volume of the bar. Take E = 200 GN/m? and Poisson's ratio =
0.32.
ôt = 0.0027 mm (decrease), ôV = 45.36 mm' (increase)]
7 A rectangular block 250 mm x 100 mm x 80 mm is subjected to axial loads as follows :
480 kN (tensile) in the direction of its length.
900 kN (tensile) on the 250 mm x 80 mm faces.
1000 kN (compressive) on the 250 mm x 100 mm faces.
Taking E = 200 GN/m2 and Poisson's ratio as 0.25 find
the following :
(i) Change in volume of the block.
(ii) Values of the modulus of rigidity and bulk modulus
for material of the block.
A bar of 30 mm diameter is subjected to a pull of 60 kN.
The measured extension on gauge length of 200 mm is
0.09 mm and the change in diameter is 0.0039 mm. Cal-
culate the Poisson's ratio and the values of the three
modulii.
2 of 2
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