Properties of Two-Force Members - Summary PDF

Title	Properties of Two-Force Members - Summary
Author	Mikey Klautzsch
Course	Statics
Institution	Oregon State University
Pages	1
File Size	113.7 KB
File Type	PDF
Total Downloads	70
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Summary

Properties of Two-Force Members - Summary...

Description

OREGONSTATEUNIVERSITY CollegeofEngineering

ENGR211 Instructor:K.Martin

PROPERTIESOFTWO‐FORCEMEMBERS Two‐forcemembers… 1. Arepinnedatbothends 2. Areonlyloadedattheirends(i.e.loadsareappliedatthepins) a. Theycannotbeloadedinthemiddleofthemember 3. Donothavetobestraight a. Theywillbestraightintrusses,buttheydon’thavetobestraightingeneral b. Bendingmomentsandshearforcesareinducedinatwo‐forcememberifitisnot straight(wewilltalkaboutthislaterinthecourse) c. Theexampleinthelecturehandoutisaperfectexampleofatwo‐forcemember thatisnotstraight 4. Haveforcescompletelydefinedbygeometry a. Theforceisdirectedalongthelinejoiningtheendpoints(asifitwereacableorrope) b. Thisistheonlywaytosatisfymomentequilibrium c. Thismeanswecanrelatethecomponentsusingtheangleθ

Fx  F cos  and

Fy  F sin 

d. Doingsoleavesuswithonlyoneunknown(F)insteadoftwo(FxandFy)  

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