Equilibrium and Elasticity Equilibrium and Elasticity Physics Help Forum Dec 3rd 2009, 11:29 AM #1 Junior Member   Join Date: Oct 2009 Posts: 4 Tee section beam compressive and tensile stresses problem Hi, i have the following problem to solve. Any assistance would be greatly appreciated. A tee section beam (T) is rigidly built into a wall at one end to produce a horizontal cantilever beam. The tee section is 100mm wide at the top, has an overall vertical height of 150mm and has a uniform secton thickness of 15mm. The beam protrudes from the wall a distance of of 3m. Concentrated loads of 3 kn and 4.5kn are applied at the free end and at the mid point respectively. Assuming the modulas of elasticity for steel is 210 GN/m^2 determine A. The max compressive and tensile stresses in the beam.. B. The resulting radius of curvature of the beam.. This is what i have so far, please advise if this is the correct way to tackle this problem.... Taking moments about R1 :- (1.5x4.5)+(3x3)-3R2=0 5.25KN=R2 R1=4.5+3-5.25=2.25 KN Then i have calculated shear forces and beam moments I get SF at A = -2.25 SF at B = -2.25 +4.5=2.5 SF at C = 2.25+3-5.25=0 BM at A =0 Bm at B 1.5x-2.25= -3.375 Bm at c (3x-2.25)+(1.5x4.5)+(3x0)-(5.25x0)=0 MAx BM therefore = -3.375 KN/m Next i have calculated y' (y bar) (3000x15x142.5)+(150x15x7.5)=y'(3000x15)+(150x15) 6429375=y'(47250) y'=136.071 mm Next i have calulated Ixx by use of the parallel axis therom of rectangle Ixx=bd^3/12 (3000x15^3/12)+(3000x15x(150-136.071)^2+(15x150^3/12)+15x150x(136.071-75)^2 =17397759.27mm^4 17.398m^4 Is this the correct way to proceed with this porblem!!! Then i have the formula M/I=E/R=O/Y I'm required to find O so through transposition O=MY/I  Tags beam, compressive, problem, section, stresses, tee, tensile Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Physics Forum Discussions Thread Thread Starter Forum Replies Last Post mumford Kinematics and Dynamics 13 May 5th 2016 05:29 AM Splint Advanced Mechanics 1 May 24th 2011 07:36 PM mess@physics Equilibrium and Elasticity 2 Dec 23rd 2010 11:37 AM danielel Advanced Mechanics 0 Feb 5th 2009 08:27 AM danielel Equilibrium and Elasticity 0 Feb 5th 2009 06:14 AM