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• ### 8

1. 1. Kites team <br />Bending<br />
2. 2. Introduction<br /><ul><li>We saw in previous chapters that we can sort the loads that act on the truss or system .
3. 3. If the system loads by a moment on its sides this named (bending)
4. 4. And this system can be named as a(beam)
5. 5. The beam bends around the normal axis (z)</li></ul> z<br />
6. 6. BENDING<br />It’s the straining of metal around a straight axis . During this process , the metal on the inside of the neutral axis is compressed , while the metal on the outside of the neutral axis is compressed , while the metal on the outside of the neutral axis is stretched <br />Pure moment<br />Pure bending<br />
7. 7. Thin beam theory<br />Euler _Bernoulli beam theory<br />Firstwe should have a reference to calculate the moment <br /> s<br />y<br /> y<br />x<br />x<br />
8. 8. In these two previous cases the moment is positive according to the right hand rule<br />
9. 9. At pure bending moment<br />There are some asumb:<br />1)The normal lines remain normal<br />2)Thin structure<br />3)Small deflection<thickness<br />
10. 10.
11. 11.
12. 12. Calculate second moment of area <br />