D3PLOT 22.1

Cut Area and Centroid

Cut area and centroid

It is also possible to extract data components CUT_AREA and CX / Y / Z_CENTROID of the cut section for display in WRITE and XY_DATA .

CUT_AREA

Is the sum of all Solid , Shell and Thick shell cut face areas. No attempt is made to compute the area of cuts through beams - see the notes above on computing cut centroids for beams..

CX/Y/Z_CENTROID

Is the average coordinates of the cut face, computed from the 1st moment of area of the cut elements areas. Therefore it suffers from the limitation above in that it cannot include both solids/shells and beam elements.

Where a model mixes solids &/or shells and beams then only the centroid through the solids &/or shells is reported.
If only beam elements are cut then the centroid of the cut is computed assuming that each beam has an equal area.

Note that this is the case for both Basic and Deformed space sections, and in the latter case the reported centroid may be very different to the section origin (although it will be on the section plane).

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