13.07.2015 Views

Momentos de inercia

Momentos de inercia

Momentos de inercia

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10.2 Teorema <strong>de</strong>l eje paralelo para un área• La distancia fija entre el eje x paralelo a x’ es dy• El momento <strong>de</strong> <strong>inercia</strong> <strong>de</strong> dA respecto al eje xdI x=( y'+d y ) 2 dA• Para el área completaI x=∫ ( y'+d y ) 2 dA∫ y' 2 dA +2d y ∫ y'dA +d y2 ∫ dA• La primera integral representa el momento <strong>de</strong> <strong>inercia</strong><strong>de</strong>l área respecto al eje centroidal

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