13.07.2015 Views

Momentos de inercia

Momentos de inercia

Momentos de inercia

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10.1 <strong>Momentos</strong> <strong>de</strong> Inercia para ÁreasMomento <strong>de</strong> Inercia• Consi<strong>de</strong>remos el área A en el plano x-y• Por <strong>de</strong>finición, el momento <strong>de</strong> <strong>inercia</strong> <strong>de</strong>l elemento <strong>de</strong>área dA respecto a los ejes x, y resultadI x =y 2 dA dI y =x 2 dA• Para el área completa, losmomentos <strong>de</strong> <strong>inercia</strong> sonI x=∫ y 2 dAI y=∫ x 2 dA

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