Q. A cylindrical bar of length ‘L₀’ and diameter ‘d₀’ is deformed using a force ‘F’. It should NEITHER experience a Plastic deformation NOR a reduction of diameter ‘Δd’ more than 7.5x10^(-3)mm. Which of the following material is suitable? Give a solution and reason to justify your answer.
length, L₀ =100 mm
diameter, d₀ = 10mm
change in diameter, Δd = 7.5x10-3 mm
Force, F= 27500 N
Material - Elasticity Modulus -- Yield strength --- Poisson Ratio
alloys - Giga Pascal -- Mega Pascal --- ratio
1. Alumin - 70 -- 200 --- 0.33
2. Brass -101 -- 300 --- 0.35
3. Steel - 207 -- 400 --- 0.27
4. Titanium - 107 -- 650 --- 0.36
2007-01-24
22:20:04
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3 answers
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asked by
burhanmz
2
in
Physics