Discussion :: Strength of Materials - Section 3 (Q.No.2)
|Lee said: (Jun 4, 2016)|
|Net deflection= WL^3/8EI - WL^3/3EI.
|Rishi said: (Jul 13, 2017)|
|Deflection of Cantilever in UDL is wl^4/8EI. HOW COME WL^3/8EI?|
|Sabibur Rahaman said: (Jul 21, 2017)|
|Support always deflection zero. This type of beam propped cantilever.
And cantilever beam UDL load come deflection wl^4/8EI or Points load come deflection wl^3/3EI.
|Dhanu said: (Sep 13, 2017)|
|Net deflection= WL^3/3EI - (wl)L^3/8EI.
|Ram Vamne said: (Sep 18, 2017)|
|Deflection always down word? How to upward?|
|Ankit said: (Dec 22, 2017)|
|There is a reaction at the free end i.e. (3wl)/8 it causes upward deflection @Ram.|
|Pratik said: (Aug 29, 2018)|
|Muhammad Zeeshan Akram said: (Dec 11, 2018)|
|UDL=1/8 & Concentrated Load=1/8.
Take difference of both because they are in opposite direction we will get the required Answer B.
|Sagar Rathor said: (Jan 8, 2019)|
|In this Question, given UDL is already converted in point load W.
So we have to take WL^3/8EI in place of wL^4/8EI.
|Ashish Sharma said: (Sep 19, 2020)|
wl^4/8EI = + (because downward).
wl^3/3EI= - (BECAUSE UPWARD).
W=L=1 ,, EI =IS CONSTANT FOR BOTH.
Put the value.
ANSWER IS NEGATIVE (-5/24).
I consider minus sign is upward direction.
SO ANSWER IS UPWARD.
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