A specimen of magnesium alloy having a rectangular cross-section of dimensions 3

Question

A specimen of magnesium alloy having a rectangular cross-section of dimensions 3.2mm x 19.1mm is deformed in tension. Using the load elongation data tabulated below answer the following questions:

Load (N) Length (mm)
0 63.50
1380 63.53
2780 63.56
5630 63.62
7430 63.70
8140 63.75
9870 64.14
12,850 65.41
14,100 66.68
14,340 67.95
13,830 69.22
12,500 70.49
Fracture Fracture

a.) Plot the data as engineering stress versus engineering strain
b.) Calculate the modulus of elasticity
c.) Determine the yield strength at a strain offset of 0.002
d.) Determine the tensile strength of this alloy
e.) Compute the modulus of resilience
f.) What is the ductility in % elongation?

Explanation / Answer

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