EK480
Isotropic means the material properties are the same in al directions, and also the loadings are the same in all directions.
EK340
Near a free boundary (i.e. no external applied forces) the shear stress on any cross-section must act in a direction parallel to the boundary.
EK339
Every shear stress is accompanied by an equal complementary shear stress on planes at right angles. The direction of the shear stresses on an element are either both towards or […]
EK337
The form of the distribution of shear stresses is dependent on the shape of the cross-section of the beam, and on the direction of application of the shearing force.