ME 221Lecture 161 ME 221 Statics Lecture #16 Section 4.6

ME 221Lecture 162 Homework #6 Chapter 4 problems: –2, 4, 10, 11, 18, 24, 39, 42, 43 & 47 –Must use integration methods to solve –Due Wednesday, October 8

ME 221Lecture 163 Quiz #4 Today Exam #2 Friday, October 10 Last day to drop without a grade reported is: Tuesday, October 14

ME 221Lecture 164 Last Lecture Centroids of composite sections QUESTIONS ????? Today Section Distributed Loads

ME 221Lecture 165 Distributed Loads Distributed loads on beams –Application of equivalent load Example

ME 221Lecture 166 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.

ME 221Lecture 167 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

ME 221Lecture 168 Example

ME 221Lecture 169 Quiz #4