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Continuing straight from the previous video, this video very first focuses on finding the distance to neutral axis from the top side of the given exemplary section. Doing so, the video uses the principle of pure bending which states that when there is a pure bending situation the summation of tension forces are equal to the summation of compression forces. Next, the video shows the concise formula for the given section and gives input the obtained values of different tensile and compressive forces.
Moving next, the video expands the equation and determines the only one unknown parameter of neutral axis distance. Later, the video step by step shows how to cross check the assumptions made at the beginning of the lesson & finds out the real scenario for the different steel layers. Finally, the video refers to next video for second iteration using the evaluated scenario of different steel layers at pure bending case of the given exemplary section.
