The beam is fabricated using a mild-strength steel which is assumed…

The beam is fabricated using a mild-strength steel which is assumed…

The beam is fabricated using a mild-strength steel which is assumed to be elastic-perfectly plastic. The beam is subjected to distributed load as shown in Figure 4. The cross section of beam is shown in Figure 5. Consider yield stress σy = 175 MPa. Determine the maximum intensity of the distributed load that can be applied to the beam when

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  1.        yield first occurs.

 

top and bottom flanges have just become fully plastic.