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ME 221Lecture 171 ME 221 Statics Lecture #17 Section 4.6

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ME 221Lecture 172 Homework #6 Chapter 4 problems: –10, 11, 18, 24, 39, 42, 43 & 47 –Must use integration methods to solve –Due Monday, October 14

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ME 221Lecture 173 Homework #7 Chapter 4 problems: –52, 53 & 54 –Due Friday, October 18

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ME 221Lecture 174 Quiz #4 Today Exam #2 Friday, October 18 Last day to drop without a grade reported is: Tuesday, October 15

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ME 221Lecture 175 No Class Friday, October 11 Use this time to work on homework

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ME 221Lecture 176 Last Lecture Centroids of composite sections QUESTIONS ????? Today Section 4.6 - Distributed Loads

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ME 221Lecture 177 Distributed Loads Distributed loads on beams –Application of equivalent load Example

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ME 221Lecture 178 Beams Beams can be loaded by a point load or a distributed load P w(x) Replace the distributed load with an equivalent concentrated force. x dx L The equivalent force is the sum of all the forces.

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ME 221Lecture 179 Equivalent Load Location The equivalent load is placed at the centroid of the distributed load. w(x) xcxc L To find reaction loads: replace distributed load with equivalent load at centroid W

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ME 221Lecture 1710 Example

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ME 221Lecture 1711 Quiz #4

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