Shear & Moment Diagrams(Continued / Graphical Method)

ENGR B36 - StaticsPat Aderhold11/10/2014

Quiz!

• You have 30 minutes• Addition to Exam #2 grade

Apply points on worst problemAs many as ½ points lost Can only improve score

Upcoming Schedule• Today

Shear & Moment diagrams (cont.) Info on Group Design Project

• Wed. - Fluid Statics (out of order)

• Next Mon. - Flexible Cables (out of order)

• What’s left? Friction Area Moments of Inertia

Shear & Moment Diagrams• Went over the most robust method

Free body diagrams at each segment Use equations to calculate V & M values

• “Shortcut” Use relations between slope, area Faster, graphical route to same answers

Relation Between w, V and M

Meriam, JL and Kraige, LG. Statics 7th Ed. Wiley 2012. p. 281-282

Sample Problem 5/13

Meriam, JL and Kraige, LG. Statics 7th Ed. Wiley 2012. p. 283

Sample Problem 5/15

Meriam, JL and Kraige, LG. Statics 7th Ed. Wiley 2012. p. 285

Practice Problem 5/129

Meriam, JL and Kraige, LG. Statics 7th Ed. Wiley 2012. p. 286

Practice Problem 5/138

Meriam, JL and Kraige, LG. Statics 7th Ed. Wiley 2012. p. 288

Extra Resources• Check yourself with free calculator

http://bendingmomentdiagram.com/free-calculator/

• Virtual lecture with more exampleshttps://www.youtube.com/watch?v=4XzN2leKJxg

Group Design Project• Groups of 4-5

Pick your own teams Inform me in class on Monday or via email Any without team preference will be placed by me

next Monday• Following same specifications of Fall ‘12

Take handout before you leave Graded on Construction, Performance and Report

For Next Class• Read through Article 5/9• Practice Problems

5/140 & 5/147 (from last time) 5/142 & 5/148

Professor Darke lecturing on Wednesday