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In a bar drawing manufacturing process a2.0” long rod with a diameter of 0.5” is pulled...

In a bar drawing manufacturing process a2.0” long rod with a diameter of 0.5” is pulled with a F=6000 lb. force.The diameter decreases permanently to 0.4”.

Determine:

a.The final length of the rod

b.The true stress and strain at this load.

c. The engineering stress and strain at this load.

d. The stress at which necking occurs.

e. If the length just before necking occurs is 4.0 “ , find the force at which necking occurs.

Strength coefficient k= 100 ksiStrain hardening exponent n=0.25Elastic modulus = ?=10?10!???Yield Stress =?!=25000???

Engineering   Mechanical-Engineering   
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