23.02.2019 Views

Livro Hibbeler - 7ª ed Resistencia Materiais (Livro)

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

612 RESISTÊNCIA DOS MATERIAIS<br />

5.139. d = 75 mm<br />

5.140. d = 70 mm<br />

5.141. T cir = 0,282A l Te· A forma circular resistirá ao<br />

maior torque.<br />

Forma quadrangular: % = 73,7%<br />

Forma triãngular: % = 62,2%<br />

5.142. Usando a Equação 5.7: T = 88,27 MPa<br />

Usando a Equação 5.15:

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!