EK372
The behaviour of a girder under an increasing shear load may be divided into the three phases: Unbuckled. The situation prior to buckling when equal tensile and compressive principal stresses […]
EK333
Since the three principal stresses are equal in magnitude, there are no shearing stresses in the material.
EK86
Figure represents the distribution of principal stresses across the span of a homogeneous concrete beam. The direction of the principal compressive stresses takes the form of an arch while the […]
EK34
The principal stresses are the normal stresses acting on the planes with no shear stress.