Answered: the modulus of elasticity the…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

During a tensile test on a specimen the following results were obtained
load(KN) 15 30 40 50 55 60 65 70 75 80 82 80 70
extension(mm) 0.05 0.094 0.127 0.157 1.778 2.79 3.81 5.08 7.62 12.7 16 19.05 22.9
diameter of gauge length=19mm
diameter at fracture=16.49mm
gauge length=100mm
gauge lengthat fracture=121mm
plot the complete load extension graph and the straight line portion to an enlarged scale .hence determine
the modulus of elasticity
the percentage elongation
the percentage reduction in area
the nominal stress at fracture
the actual stress at fracture
the tensile strength

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