Calculate the modulus, in GPa, of the bar of a steel alloy that has a measured stress of 321 MPa corresponding to a measured strain of 0.00155 in the linear elastic portion of the curve. Round answer to 3 significant figures and report answer in the format: 123 GPa

Respuesta :

Answer:

E = 207 GPa

Explanation:

Young's modulus is given by following equation:

[tex]E = \frac{\sigma}{\epsilon}[/tex]

Where [tex]\sigma[/tex] and [tex]\epsilon[/tex] are stress and strain, respectively.

By replacing terms:

[tex]E = \frac{0.321 GPa}{0.00155}\\E = 207 GPa[/tex]

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