Flexural modulus
Encyclopedia
In mechanics
, the flexural modulus is the ratio of stress
to strain
in flexural deformation, or the tendency for a material to bend. It is determined from the slope of a stress-strain curve produced by a flexural test (such as the ASTM D 790), and uses units of force per area. It is an intensive property.
Flexural modulus:
For a 3-point deflection test of a beam, where: w and h are the width and height of the beam, L is the distance between the two outer supports and d is the deflection due to load F applied at the middle of the beam.
Mechanics
Mechanics is the branch of physics concerned with the behavior of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment....
, the flexural modulus is the ratio of stress
Stress (physics)
In continuum mechanics, stress is a measure of the internal forces acting within a deformable body. Quantitatively, it is a measure of the average force per unit area of a surface within the body on which internal forces act. These internal forces are a reaction to external forces applied on the body...
to strain
Strain (materials science)
In continuum mechanics, the infinitesimal strain theory, sometimes called small deformation theory, small displacement theory, or small displacement-gradient theory, deals with infinitesimal deformations of a continuum body...
in flexural deformation, or the tendency for a material to bend. It is determined from the slope of a stress-strain curve produced by a flexural test (such as the ASTM D 790), and uses units of force per area. It is an intensive property.
Flexural modulus:
For a 3-point deflection test of a beam, where: w and h are the width and height of the beam, L is the distance between the two outer supports and d is the deflection due to load F applied at the middle of the beam.