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Tesis de Maestria Jackeline Rodríguez T..pdf - Saber UCV ...

Tesis de Maestria Jackeline Rodríguez T..pdf - Saber UCV ...

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Para el caso <strong>de</strong> cuchilla no afilada se genera una fuerza adicional que es la fuerza<br />

<strong>de</strong> fricción por lo tanto las ecuaciones para <strong>de</strong>terminar las fuerzas <strong>de</strong> corte total<br />

(horizontal y vertical) se muestran a continuación:<br />

F +<br />

c f<br />

= F F<br />

(Ec.4.7)<br />

c c<br />

F Fh<br />

+<br />

= F ⇒ F = ε wd(<br />

1+<br />

ζ )<br />

c<br />

F +<br />

c<br />

v<br />

f f f<br />

= Fh<br />

Fv<br />

⇒<br />

F µ<br />

(Ec.4.8)<br />

f f<br />

h = Fv<br />

(Ec.4.9)<br />

f f<br />

∴ F = F ( 1+<br />

µ )<br />

(Ec.4.10)<br />

v<br />

38

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