Graphics is a screen share of this web page plus tablet sketching. The Centroid Starting from simple I and finishing at the centroid for a combined element cross-section. From "Why do we need it?" to calculating I for simple shapes. The Introduction to Second Moment of Area Graphics is a screen share of this web page plus tablet sketching. Calculating I for a complex shapes where the centroids of each element are not at the same height. Formulas for I of simple shapes.Īrea Moments (part 2) Combined shapes. Lecture Notes: Area-Moment.pdf Area-Moment.oneĪrea Moments (part 1) Introducing I (the Second moment of area) and why it is used for bending situations. It is the special "area" used in calculating stress in a beam cross-section during BENDING.
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