How to Solve for Deflection Using Superposition Method - 1/2

[@AFMathandEngineering]

Part 2: kzbin.info/www/bejne/Z5eYhqqHfcmLpNk Check out our newest, better quality video on superposition!! kzbin.info/www/bejne/iYvWo4upiJKBia8

[@rahulbhatt1391]

how did you get ML^2/16EI

[@hurtamor6445]

Can you provide a link for the table of formula of the deflections? Thanks. Much appreciated 😇

[@ahmadfathur1823]

In case 8, can u explain why the moment 8×2,5 is positive?, doesn't this moment direction is anticlockwise?

[@dominicsomeone6523]

Take sum of moment at c, find M at B, its 110KNm CW. It makes sense since B resists the rotation of A, it must be CW since A goes CCW

[@aymenelmoubarik6332]

what was the previous video about integration. where can i find it

[@Mr.P539]

can we use superposition method in two span beam or continuous beam?

[@nathanlaughlin6887]

Just wondering where you got the formula for deflection at the midpoint ? i understand why its not the max deflection but would like to know where you got the formula for midpoint

[@AFMathandEngineering]

It's a standard deflection formula that is derived using deflection by integration. They are widely available. Your textbook should have some theory on how they are arrived at, also check out deflection by integration video.

[@nathanlaughlin6887]

@@AFMathandEngineering thanks, I see that now! The formula sheet I have just didn’t include the mid point formulas

[@umeshkumarsingh6150]

ML^2/16 is a deflection at L/√3 distance not mid way .,but we have to find out at midpoint,so is it correct??

[@AFMathandEngineering]

ML^2/16EI is the deflection at the midpoint of the span for that case, not the maximum deflection, which occurs at L/sqrt(3) and is ML^2 / (9 * sqrt(3) *EI).

[@umeshkumarsingh6150]

AF Math & Engineering I am not getting case 8 ,when max deflection you get is ml^2/9√3,then how come centre deflection which is ML^2/16 greater than the maximum.and could you please send me that table to my gmail [e-mail]

[@AFMathandEngineering]

you must be putting it in your calculator wrong..the term is exactly the same, the difference is that the max deflection has the term 9 sqrt 3 in the denominator and the midspan deflection has 16. 9 sqrt 3 = 15.59 which is < 16, which means you should be getting a larger value for the 9 root 3. check again.

[@umeshkumarsingh6150]

AF Math & Engineering okay I thought ml^2/16 is deflection at L/√3.so at L/2 it's ml^2/16 ,got it and thanx ..could u plz send me mail of that sheet

[@AFMathandEngineering]

Ill have to see if i still have the book, it might be a while. Google a beam deflection table or find one in the back of a structural analysis or mechanics of materials pdf book.

[@EE-pq8yn]

video is great but can you check the conversion fromm mm^4 to m^4? im getting 9*10^4 i could be wrong!!

[@AFMathandEngineering]

i think you're confusing the ^4 from the mm^4 and the 10^6 which is what you should be converting try 90*10^6/1000^4

[@EE-pq8yn]

great work overall ....I can't complain...you made it very clear...God bless you..

[@AFMathandEngineering]

Much appreciated Eslam, we're really glad you're enjoying our content!

[@EE-pq8yn]

My final is tomorrow morning and you made it very clear!! i hope you'll be doing more advance stuff on mechanic hopefully by August..take care and keep the excellent work up.

[@AFMathandEngineering]

Good luck, we're really glad we could help. We'll be uploading at least 50 new videos this summer including advanced structural analysis, computer aided structural analysis techniques including graphing calculators and a big section on statically indeterminate structures. Stay tuned, and of course let your friends know about us too :D

[@ahmedkorim6420]

thx u saved my ass =D

[@emirbfitness]

whatta guy

[@eddimishreyash1562]

The case 7 formula is wrong , there will be no negative sign

[@AFMathandEngineering]

Incorrect, case 7 will cause a downward deflection, we've assigned downwards as negative and an upwards deflection as positive. Maybe you should ask before declaring something you don't understand as wrong.

[@eddimishreyash1562]

My bad , sry