Physics Help Forum maximum deflection / slope of beam

 Nov 29th 2016, 07:59 AM #1 Senior Member   Join Date: Jun 2014 Posts: 306 maximum deflection / slope of beam For part a ) , my ans is EI(d2y/dx2) = - Px For part b) , my ans is EI(dy/dx) = -P(x^2)/2 +c1 EIy = -P(x^3)/6 +c1x +c2 at x= 0 , y = 0 , so c2 = 0 , at x = 0 , dy/dx = 0 , so c1 = 0 , so , EIy = -P(x^3)/6 , so , EIy max occur at L=3 , so EIy max = -10(3^3) / 6 = -45 , but the ans is EIy max =-46.67 , which part of my working is wrong ?? for slope at x = 2 , my ans is EI(dy/dx) = -P(x^2)/2 = EI(dy/dx) = -10(2^2)/2 = -40/EI Attached Thumbnails

 Tags beam, deflection, maximum, slope

,

### for maximum deflection the slope dy/dx is

Click on a term to search for related topics.
 Thread Tools Display Modes Linear Mode

 Similar Physics Forum Discussions Thread Thread Starter Forum Replies Last Post psyclone Advanced Mechanics 3 Apr 20th 2015 09:20 AM wedam Kinematics and Dynamics 4 May 11th 2013 08:51 AM fbaker Kinematics and Dynamics 1 Aug 17th 2010 11:34 PM JAW Kinematics and Dynamics 1 Oct 14th 2009 10:36 PM mola Advanced Optics 1 May 24th 2009 10:34 PM