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Second Moments of Area,
Composite Areas

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By the end of this section, you should . . .
  1. Be able to evaluate, without integration, the second moment of area of a complex body which is created by combining rectangular, triangular, and circular pieces.

  2. Be able to evaluate, without integration, the second moment of area of a complex body which is created by removing rectangular, triangular, and circular pieces from a larger body whose second moment of area is known (or easily determined).

  3. Be able to calculate (from memory) the second moment of area of a rectangle with respect to an axis along one edge or an axis through the centroid of the rectangle and parallel to one edge.


Comments and suggestions should be sent to:
Mail-to email: sturges@iastate.edu
phone: 515-294-6242.


Note Tab © 1998, Leroy D. Sturges (revised 20 August 1999)