WORKED EXAMPLES

WE$1$

The following data were obtained from a uniaxial standard tension

test on a specimen of a ductile nonferrous biomaterial, having a solid

circular cross$-$section, with initial diameter of $12\mathrm{.}7$ mm :

After fracture, the diameter of the specimen is $11\mathrm{.}33$ mm and the

distance between the gage section marks is $65\mathrm{.}02$ mm $.$

PLOT the engineering stress$-$versus$-$angineering strain curve from

these results, and hence obtain for the material:

$($a$)$ the modulus of elasticity

$($b$)$ the $0\mathrm{.}2\%$ offset strength

$($c$)$ the ultimate tensile strength.

$($d$)$ the percentage elongation at fracture

$($e$)$ the percentage reduction in area at fracture