Question

For a certain steel alloy, the yield strength is 560 MPa and the Young’s modulus is 200 GPa. What is the maximum load that may be applied to a specimen with a cross sectional area of  without plastic deformation?

Answer 1

If we apply the load on a given cross section it will create the stress. If we gradually increase the load, stress will gradually increases. Once the stress value reaches the yield strength value 560 MPa then the specimen starts deforming plastically. In orders to prevent any plastic deformation in the specimen the stress should be less than 560 MPa. The maximum force is nothing but 560*cros sectional area(in mm^2).then we will get the force value in Newtons(N).