… using equilibrium in a specific cross-section

Fig. 19 Figure 10.2 Hartsuijker and Welleman (2006)

To find the section forces in a certain cross-section a free-body diagram has to be drawn in which the structure is cut at the point of interest. Following, the forces can be solved using the equilibrium of a body. This is treated in chapter 10.2 of the book Engineering Mechanics Volume 1 (Hartsuijker and Welleman, 2006), of which the diagrams will be covered in Diagrams. Typically, the sign of section forces is indicated with deformation signs

In general, it is advised to first solve for the support reactions.

General exercises

The following exercises can be made with any method of your liking:

• If you’re a TU Delft student, you can practise with the following exercises

• Exercises in chapter 10.5 of the book Engineering Mechanics Volume 1 (Hartsuijker and Welleman, 2006), answers are available on this website: 10.2, 10.3