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2.3 Energia napätosti pri krútení<br />

hriadeľa kruhového prierezu<br />

• Energiu napätosti pri krútení možno vyjadriť v tvare:<br />

A <br />

L<br />

1 M<br />

<br />

2 G.<br />

J<br />

0<br />

2<br />

k<br />

p<br />

x<br />

x<br />

dx<br />

– pre konštantný prierez po celej dĺžke hriadeľa a pre<br />

konštantný krútiaci moment je energia napätosti:<br />

A <br />

1 M<br />

2 k<br />

. L<br />

2 GJ .<br />

p<br />

34

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