Hollow Thin Walled Rectangle - Geometric Properties

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Geometric Property Calculator
Plate design formula Side, a:

Side, b:

Thickness, t:




mm

mm

mm
Area, A: mm2
Perimeter (Outside), P: mm
Perimeter (Inside), P: mm
Centroid, Cx: mm
Centroid, Cy: mm
Second Moment of Area, Ix: mm4
Second Moment of Area, Iy: mm4
Second Moment of Area, Ix1: mm4
Second Moment of Area, Iy1: mm4
Polar Moment of Inertia, Jz: mm4
Polar Moment of Inertia, Jz1: mm4
Radius of Gyration, Kx: mm
Radius of Gyration, Ky: mm
Radius of Gyration, Kz: mm
Radius of Gyration, Kx1: mm
Radius of Gyration, Ky1: mm
Radius of Gyration, Kz1: mm
Plastic Section Modulus, Sx: mm3
Plastic Section Modulus, Sy: mm3
Elastic Section Modulus, Zx: mm3
Elastic Section Modulus, Zy: mm3
Torsional Constant, J: mm4
   

The above hollow thin walled rectangle property calculator is based on the provided equations and does not account for all mathematical limitations. The calculator has been provided with educational purposes in mind and should be used accordingly. Unit conversion

Geometric Properties of a Hollow Thin Walled Rectangle

Need an excel spreadsheet for designing the above shape, click here!

Notation and Units

Metric and Imperial Units

The above formulas may be used with both imperial and metric units. As with all calculations care must be taken to keep consistent units throughout. Examples of units which are typically adopted are outlined below:

Notation

  • A = Geometric Area, in2 or mm2
  • C = Distance to Centroid, in or mm
  • I = Second moment of area, in4 or mm4
  • Ji = Polar Moment of Inertia, in4 or mm4
  • J = Torsional Constant, in4 or mm4
  • K = Radius of Gyration, in or mm
  • P = Perimeter of shape, in or mm
  • S = Plastic Section Modulus, in3 or mm3
  • Z = Elastic Section Modulus, in3 or mm3

Online Hollow Thin Walled Rectangle Property Calculator

Using the structural engineering calculator located at the top of the page (simply click on the the "show/hide calculator" button) the following properties can be calculated:

  • Area of a Hollow Thin Walled Rectangle
  • Perimeter of a Hollow Thin Walled Rectangle
  • Centroid of a Hollow Thin Walled Rectangle
  • Second Moment of Area (or moment of inertia) of a Hollow Thin Walled Rectangle
  • Polar Moment of Inertia of a Hollow Thin Walled Rectangle
  • Radius of Gyration of a Hollow Thin Walled Rectangle
  • Elastic Section Modulus of a Hollow Thin Walled Rectangle
  • Plastic Section Modulus of a Hollow Thin Walled Rectangle