Area Moments+ is a standalone calculator that determines the structural properties of complex shapes that you generate internally (within the calculator).
Refer to our Area Moments calculator for a description of the subshapes available.
Subject
The term 'area moment' defines the 2D structural properties of a 3D body's crosssection and thereby its ability to resist deformation.
A complex shape is one that cannot be described using basic shapes such as triangles, rectangles, circles, etc. Such shapes may be addressed, however, by constructing them from basic shapes the structural properties of which have themselves been determined. The structural properties of more than one subshape cannot simply be added together, they must be combined using their moments.
Area Moments+ calculates the structural properties of a single composite shape constructed from up to 100 subshapes that you create within the program and position and/or rotate within the complex construction relative to your designated offset axes.
The subshape calculation options are solid or hollow, regular and irregular triangles and quadrilaterals, plus regular polygons, ellipses and sectors (as described in our Area Moments calculator). The image of the complex shape may be zoomed and panned using your mouse wheel (for best fit within the picture window).
The structural properties are provided for each subshape along with the complex construction and include: area, second moment of area, polar moment of inertia, centre of area and radius of gyration about its neutral and strongweak axes.
The output data from Area Moments+ may be used as input to other calculators such as Beams, Engineering Principles, Beams+ and Mode Shapes
For help using this calculator see Technical Help
Area Moments Calculator for Complex Shapes  Options
Area Moments+allows for up to 100 subsections (and five calculation options). In addition to the structural properties for each subsection modified to the new axes and rotations, the output data for each subsection (calculation option) includes the calculation results for the composite.
You enter: 
and this moment of inertia calculator will provide: 


Area of composite

Second moment of area (uu)

Second moment of area (vv)

Second moment of area (uv)

Radius of gyration (uu)

Radius of gyration (vv)

Second moment of area (33)

Second moment of area (44)

Radius of gyration (33)

Radius of gyration (44)

Rotation of axes (33 & 44) [°]

Second moment of area (oo)

Second moment of area (rr)

Second moment of area (or)

Radius of gyration (oo)

Radius of gyration (rr)

Second moment of area (55)

Second moment of area (66)

Radius of gyration (55)

Radius of gyration (66)

Rotation of axes (55 & 66) [°]

Distance to centre of composite

Distance to centre of composite

Second moment of area (uu) of subsection

Second moment of area (vv) of subsection

Second moment of area (uv) of subsection

Radius of gyration (uu) of subsection

Radius of gyration (vv) of subsection

Second moment of area (oo) of subsection

Second moment of area (rr) of subsection

Second moment of area (or) of subsection

Radius of gyration (oo) of subsection

Radius of gyration (rr) of subsection

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