Considen the material Al-$456 It has the following physical pieperties oyield =230m PA 5=-726PA (modulos elesticity) G- 28GPH Cmad vlus rigidity) Oultimate =315mPa Iyield=130mPA Jultimate=185 mPA A) Calculate Poisson's ratio 3-0 block of Al-5456 wwith the B If we have a following dimensions And Forces Ex =800N X= Bcm Fy= 1000N y= Hom P=1400N ZE8cm c) Is our block safe? (consider only plane stess) DSet up the 3 eoutions to find the strains (E Ey 2) in each directian ESolve the 3exuations to find the Einal dimensions of our block

(40 How A Rismatic steel bar of a Square cro ss section (looxlo0)mm is loaoled by Compressive force P= 1300 K, the bar has length 2.5 m, Eg=200GPay V=0.3,determine the shortening 8, the increase in the dimensions of cross Section, the change in Volume DV of the bar? loomm loomm

= 5.29 Knowing that P Q = 480 N, determine (a) the distance a for which the absolute value of the bending moment in the beam is as small as possible, (b) the corresponding maximum normal stress due to bending. (See hint of Prob. 5.27.) THEMOM DV P nedw to absol be500 mm 500 mm pripoly not Alase BOLERON 9T AO mersib anamorp sode bol ng appiled: the batuda Fig. P5.29 edi te ating out A Daniloobo CV. D (5.6b) Q f 12 mm s mas i nadw bozudiruaib ebimnice di Tibe sade 2b2 B (10. busd bus bris to pages. eda sdtlanbi are noe minnas li batalize yo led ditw i most u tamom gaiboedshus en betrovalmisoled loads Dignst Box brol 18 mm

7 30 Enercise:- diameter of 12mm A cylindrical rod 100 mm long with is subjected to a 30000 N. Assuming that the tensile load of deformation is entirely elastic and allowable elevation in pligmeter is allowable reduction in dligmeter is 0.015mm. choose amory only meeting requirent U (Poiss ons vahu) 0.33 below Material Aluminium alloy Bronze Titanium allow manimum 0.3 mm while manimum E (GPa) 70 100 110 0.34 3

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10:59 0.63 a. Y l KB/S VPN tutorial 1.pdf Axlal 1oads are applied to uie compounu rou inal is composeu of an aluminum segment rigidly connected between steel and bronze segments. (a) What is the stress in each material given that P = 10 kN? (b) Find the largest safe value of P if the working stresses are 120 MPa for steel, 68 MPa for aluminum, and 110 MPa for 2. Aluminum Steel A=300 mm² Bronze A=400 mm? A=600 mm² 2P 4P 3m -5m 4m bronze. Answer: a) 0one = 50 MPa; ouminum = 33.3 MPa; oel = 100 MPa ; b) P = 12KN A circular aluminum tube of length L = 400 mm is loaded in compression by axial forces P at the ends. The ou inside diameters are 60 mm and 50 mm, respectively. A strain gage is placed on the outside of the bar to measur strains in the longitudinal direction (axial direction). (a) If the measured compressive strain is ɛ = 550×10-6 , what is the shortening ô of the bar? (b) If the compressive stress in the bar is intended to be 40 MPa, what should be the load P? Answer: a) 8 = 0.22…

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Find the value of p

15 kip Specific Weight y Elasticity E Rigidity G (Ib/in") Modulus of Modulus of Yield Strength (ksi) Materials (10) ksi (10) ksi Tens. Comp. Shear A - Structural A36 - Stainless 304 - Tool L2 0.284 29.0 11.0 36 36 Steel 0.284 28.0 11.0 30 30 Alloys 0.295 29.0 11.0 102 102 2 ft 4 kip 4 kip The A-36 steel bar shown in the figure is made from two segment shaving cros OSS- B sectional areas of AAB-lin^2 and ABD=2in^2. Determine the vertical displacement of end A and the displacement of B relative to C. 1.5 ft 8 kip 8 kip| C 1 ft D