Flexural strength of triangular prism

[patehi]

Hello forum,

could someone share a formula to calculate the flexural strength and flexure modulus of a beam with a rounded triangular cross-section?

Namely triangular crayons, which is rounded on the edges.
Assuming that the triangle is equilateral.

http://s24.postimg.org/4tt5onerp/Unbenannt.jpg

Thank you, appreciate everyone's input!

 

[Mech_Engineer]

Calculating the section modulus for the crayon should be possible, have you covered calculating a "second moment of area" a.k.a. the "area moment of inertia"?

More challenging will be the material properties for the crayon, what material properties do you plan to use?