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

2. 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

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

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

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

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

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

8. 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.

9. 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

10. ME 221Lecture 1710 Example

11. ME 221Lecture 1711 Quiz #4