Shape Factor For Rectangular Section
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Shape factor is the ratio of plastic section modulus to the elastic section modulus.
Shape factor for rectangular section. Shape factor for rectangular section snehal walke. B width h height t wall thickness. For example shape factor s for rectangular section is 1 5 which means 50 extra moment a member can take after attaining first yield.
3 300mm 250mm i fig. For the case of a rectangular cross section the plastic neutral axis passes through centroid dividing the whole area into two equal parts. Shape factor signifies how much extra moment a member can take after attaining the first yield i e attaining yield strength by the extreme fibers it is a geometric property not a material property.
The compressive area would be a rectangle with dimensions b and h 2. For a wide flange section f is equal to 1 1. For a rectangular section f is equal to 1 5.
The same applies for the tensile area too. Determine the shape factors for the following sections i the rectangular section given in fig. For a rectangular cross section the factor n 1 2 and for a circular cross section n 1 11.
The ratio of mp to my is called as the shape factor f for the section. 1 i section fig. Unsubscribe from snehal walke.
2 iii circular section fig 3 ii 250nm 150mm 150mm 600mm diameterd 275mm 150mm i fig. How to find shape factor of a rectangle and a circle with derivation duration. Its centroid would be at a distance equal to h 4 from the x axis as shown in the next figure.