Question

A metallic material with yield stress of 140 MPa and cross section of 300 mm x 100 mm, is subjected to a tensile force of 8.00 MN. Will the sample experience plastic deformation? You must justify your answer.

Answer 1

Answer:Yes,266.66 MPa

Step-by-step explanation:

Given

Yield stress of material =140 MPa

Cross-section of
`300* 100 mm^2`

Force(F)=8 MN

Therefore stress due to this Force(
`\sigma`)

`\sigma =(F)/(A)=(8* 10^6)/(300* 100* 10^(-6))`

`\sigma =266.66 * 10^(6) Pa`

`\sigma =266.66 MPa`

Since induced stress is greater than Yield stress therefore Plastic deformation occurs