A) draw the stres-strain diagram for a typical steel bar under tensile test showing all details...

A) draw the stres-strain diagram for a typical steel bar under tensile test showing all details of the results of the test.

B) A material like aluminium does not have an abviouse yield point and undergoes large starin after the proportionality limit draw the sketch to show how the arbitrary yield stress is determined.
C) ASteel sample of diameter 30mm and guage length 60mm gave under tensile test the following results.
a) load at limit proportionality 70,000N and the extension 0.045mm.
b) load at yield 80,000N.
c) maximum load 130,000N
the two parts where joined together after being broken.the length between guage points was found to be 80mm and the diameter at the neck 20mm calculate:-

1) the modulus of elasticity E?
2) the stress at the limit proportionality?
3) yield stress?
4) ultimate limit stress?
5) percentage elongation?
6) percentage cinstruction?

Expert Solution

Ally Wells answered 1 year ago

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