A steel bar 10 mm in diameter and 150 cm long is stressed by a weight of 12 kg dropping freely through a height h 50 mm on to a collar produced at end of the bar, the other end of the bar is fixed to the ceiling. Find the instantaneous stress and instantaneous elongation. Comment whether the bar will break under this shock (impact) load. E 210 kN/mm², ultimate strength of the steel is 450 MPa. What will be the stress and elongation if the same load is applied suddenly instead of impact loading? A steel rod is placed coaxially in an aluminium tube of outer diameter 60 mm inner diameter 30 mm. A compressive force is applied on assembly as shown in the fig. Determine the stresses developed in steel rod and aluminium tube. Use E, -3E, -210 GPa.

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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P= 100 kN
A steel bar 10 mm in diameter and 150 cm long is stressed by a weight of 12 kg
dropping freely through a height h = 50 mm on to a collar produced at end of the
bar, the other end of the bar is fixed to the ceiling. Find the instantaneous stress
and instantaneous elongation. Comment whether the bar will break under this
shock (impact) load. E 210 kN/mm2, ultimate strength of the steel is 450 MPa.
What will be the stress and elongation if the same load is applied suddenly
instead of impact loading?
A steel rod is placed coaxially in an aluminium tube of outer diameter 60 mm
inner diameter 30 mm. A compressive force is applied on assembly as shown in
the fig. Determine the stresses developed in steel rod and aluminium tube. Use E,
= 3E, = 210 GPa.
Q.2.
Aluminium
Steel
Rod
Tube
Q.3.
ww v'0OST
1500 mm
Transcribed Image Text:P= 100 kN A steel bar 10 mm in diameter and 150 cm long is stressed by a weight of 12 kg dropping freely through a height h = 50 mm on to a collar produced at end of the bar, the other end of the bar is fixed to the ceiling. Find the instantaneous stress and instantaneous elongation. Comment whether the bar will break under this shock (impact) load. E 210 kN/mm2, ultimate strength of the steel is 450 MPa. What will be the stress and elongation if the same load is applied suddenly instead of impact loading? A steel rod is placed coaxially in an aluminium tube of outer diameter 60 mm inner diameter 30 mm. A compressive force is applied on assembly as shown in the fig. Determine the stresses developed in steel rod and aluminium tube. Use E, = 3E, = 210 GPa. Q.2. Aluminium Steel Rod Tube Q.3. ww v'0OST 1500 mm
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