7. LOADS

CHAPTER 7 "CARGOES" 27 These stresses are calculated for each element (ELEMENT column) for each load (LOAD column) at 7 different points: At the centroid (point 21 in the original figure) and at the centres of the 6 faces (22-27 in the original figure). That is, point 1 is 21, point 2 is point 22, etc. For an easier understanding of the above trends and how they develop on the surface, I attach the figure below. The convention for shear stresses is that their indices mean: The first indicator is the axis along which the plane in which the shear stress acts is perpendicular. The second is the axis that is parallel to this trend. It is shown that for shear stresses σij = σji