GATE MT 2014 Q.17 A steel rod was subjected to a fluctuating stress cycle that varied between a maximum of 400 MPa in tension to a minimum of 300 MPa in compression. What is the stress amplitude, in MPa?

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Asked: 3 years ago2020-03-26T04:10:42+05:30 2020-03-26T04:10:42+05:30In: Mechanical Metallurgy

GATE MT 2014 Q.17 A steel rod was subjected to a fluctuating stress cycle that varied between a maximum of 400 MPa in tension to a minimum of 300 MPa in compression. What is the stress amplitude, in MPa?

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Askmemetallurgy Official · Accepted Answer · 2020-08-30T16:09:30+05:30

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Askmemetallurgy Official Gold official account of Askmemetallurgy

2020-08-30T16:09:30+05:30Added an answer about 3 years ago

Correct answer is 350 MPa σa=(σmax-σmin)/2 ⇒(400-(-300))/2 = 700/2 = 350 MPa

Correct answer is 350 MPa

σ_a=(σ_max-σ_min)/2

⇒(400-(-300))/2 = 700/2 = 350 MPa

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