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The objectives of this tutorial are to discuss about the method of joints vs. the method of sections followed by a brief explanation on when to use method of sections. The method of sections allow to take a cut anywhere in a truss structure. It is not need to start at a support like the method of joints. Moving on, the video presents a super simple triangular truss and illustrates how to apply method of sections to compute the axial forces at members using the equilibrium principle.
Next, the video shows more complex trusses and subsequently talks about how to apply the method of sections to determine the axial forces at different members pointing out the key difference with the method of joints. Overall, the video tries to give a brief inside to the method of sections used to analysis different types of trusses in engineering mechanics. Finally, the video refers to watch next video to continue the lesson of method of sections theory.
Mechanics, the study of forces and physical bodies, underpins a very large proportion of all forms of engineering. A thorough understanding of mechanics is essential to any successful engineer. This course helps develop an understanding of the nature of forces with consideration for how they may be simplified in an engineering context. The conditions of equilibrium are then used to solve a number of problems in 2D and 3D before moving on to a broad range of topics including centroids, distributed loads, friction and virtual work. The course will also provide an introduction to dynamics, with a particular focus on the effects that forces have upon motion.