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The objectives of this video are to introduce the method of joints & to resolve axial loads in a simple truss. First of all, the video displays the given exemplary problem of super simple truss having three members connected like a triangle and subjected to an axial force at top joint of the truss. The truss has been supported by a fixed support at left-bottom joint & a roller support at right-bottom joint. The video asks to resolve axial forces in two adjacent members by considering left-bottom joint.
Moving on, the video shows how to find support reactions and subsequently draws the FBD of the given truss. Next, the video draws the FBD of left-bottom joint by showing the assumed axial forces acting through the joint and successively applies equilibrium equation to solve the unknown values of internal forces. Thus, the video finds out the axial forces developed adjacent to two members of left-bottom joint explaining the facts of compression and tension developed in those members.
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.