Engineering normal strain is total deformation over initial dimension¶

Engineering normal strain, also called Cauchy strain, is expressed as the ratio of total deformation to the initial dimension of a material body on which forces are applied.

Links:

Wikipedia.

engineering_normal_strain¶: engineering_normal_strain of the body.

Symbol:: e
Latex:: \(e\)
Dimension:: dimensionless

total_deformation¶: Total deformation of the body.

Symbol:: Delta(l)
Latex:: \(\Delta l\)
Dimension:: length

initial_dimension¶: Initial dimension of the body, e.g. initial length.

Symbol:: l
Latex:: \(l\)
Dimension:: length

law¶

e = Delta(l) / l

Latex:: \[e = \frac{\Delta l}{l}\]