The true stress (in MPa) versus true strain relationship for a metal is given by = 1020 0.4 The cross-sectional area at the start of a test (when the stress and strain values are equal to zero) is 100 mm . The cross-sectional area at the time of necking (in mm ) is _____(correct to two decimal places).

The true stress (in MPa) versus true strain relationship for a metal i

1.	The true stress (in MPa) versus true strain relationship for a metal is given by = 1020 0.4 The cross-sectional area at the start of a test (when the stress and strain values are equal to zero) is 100 mm . The cross-sectional area at the time of necking (in mm ) is _____(correct to two decimal places).
A.	67.032 mm
B.	- 67.032 mm
C.	68.032 mm
D.	66.032 mm
Answer» B. - 67.032 mm

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