A 375-mm-long sheet with a cross-sectional area of 4 x 10-4 m (See Fig 7.30) is...

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A 375-mm-long sheet with a cross-sectional area of 4 x 10-4 m² (See Fig 7.30) is stretched with a force, F, until or = 20°. The material has a true stress-true strain curve o = (650 MPa)e 0.3. 250 mm -125 mm- FIGURE 7.30 Workpiece considered in Example 7.3. Find: (a) Determine the total work done, ignoring end effects and bending. (b) What is amax before necking begins? A 375-mm-long sheet with a cross-sectional area of 4 x 10-4 m² (See Fig 7.30) is stretched with a force, F, until or = 20°. The material has a true stress-true strain curve o = (650 MPa)e 0.3. 250 mm -125 mm- FIGURE 7.30 Workpiece considered in Example 7.3. Find: (a) Determine the total work done, ignoring end effects and bending. (b) What is amax before necking begins?

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SOLUTION a To find the total work done we need to integ... View the full answer