Flexural modulus

108–110, ISBN 978-0-1343-1965-0 is an intensive property that is computed as the ratio of stress to strain in flexural deformation, or the tendency for a material to resist bending.

It is determined from the slope of a stress-strain curve produced by a flexural test (such as the ASTM D790), and uses units of force per area.

[2] The flexural modulus defined using the 2-point (cantilever) and 3-point bend tests assumes a linear stress strain response.

However, in anisotropic materials, for example wood, these values may not be equivalent.

Moreover, composite materials like fiber-reinforced polymers[4][3] or biological tissues[5] are inhomogeneous combinations of two or more materials, each with different material properties, therefore their tensile, compressive, and flexural moduli usually are not equivalent.