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Tag Archives: first moment of area
Section Properties from Layers
An alternative to finding the section properties of irregular polygons from the coordinates of the corners is to divide the shape into rectangular or trapezoidal layers. The properties of the shape may then be found by simply summing the properties … Continue reading
Posted in Maths, Newton, Uncategorized
Tagged Area, first moment of area, layers, second moment of area, section properties
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Section Properties from Coordinates
The area of irregular closed polygons defined by coordinates may be conveniently calculated by summing the areas of adjacent trapeziums, as shown below. The area of each trapezium is calculated from the X axis. Note that with the apex coordinates … Continue reading
Posted in Maths, Newton
Tagged Area, coordinates, first moment of area, polygon, second moment of area
2 Comments
