21. The material of the spring is thereby subjected to a bending moment , either reducing or increasing the helical radius. 22. Engineering descriptions of the computation of bending moments can be confusing because of unexplained sign conventions and implicit assumptions. 23. A bending moment manifests itself as a tension and a compression force, acting as a couple in a beam. 24. In a bending moment diagram, it is the point at which the bending moment curve intersects with the zero line. 25. Here, z is the distance from the neutral axis to a point of interest; and M is the bending moment . 26. At this spacing the main support rings are designed for the sum of suction pressure stresses & support bending moments . 27. So no, the pivots would not be at the points of zero bending moment , they would be at the supports. 28. In a bending moment diagram, it is the point at which the bending moment curve intersects with the zero line. 29. This equation allows a structural engineer to assess the stress in a structural element when subjected to a bending moment . 30. Because of these very strong and rigid joints, some of the bending moment in the rafters is transferred to the columns.
