Q11: strain product as : a: forces per unit area ---- b: shear stress c: E =AL/L d: My/I Q12: the magnitude of force is: ------, on the pin diameter is 8 m. if the ultimate stress is 60 N/m was applied a: 100 N b: 525 N c: 3016 N d: 300 N Q13: Brinell hardness formula is: а: 28 ----- b:2pt c: p/ndt d: E 3
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- The hollow drill pipe for an oil well (sec figure) is 6,2 in. in outer diameter and 0.75 in. in thickness. Just above the bit, the compressive force in the pipe (due to the weight of the pipe) is 62 kips and the torque (due to drilling) is 185 kip-in. Determine the maximum tensile, compressive, and shear stresses in the drill pipe.2) A machine frame is made of steel having Sy = 400 MPa and Ssy = 250 MPa. When loaded in a test fixture, the stresses were found to vary linearly with load. Two points on the surface were found to be most critical. With a 4-kN test load, stresses at these points were: point a, 0₁ = 200 MPa, 0₂ = 100 MPa; point b, 0₁ = 150 MPa, 0₂ = -100 MPa. Compute the test load at which the frame will experience initial yielding according to the (a) maximum-normal-stress theory, (b) maximum-shear-stress theory, and (c) maximum-distortion-energy theory. Discuss briefly the relative validity of each theory for this application. Considering all the information available, what is your best judgment of the value of the test load at which yielding would actually be expected to begin? 02= 100 MPa a 02 02=-100 MPa b 02 0₁ = 200 MPa 01 = 150 MPaBP1: A wire hook is loaded with F=2000 lb. The hook has a wire diameter of 1", eye diameter of 3", and central distance between the eyes of 10". Determine the inner and other stresses on the loop where the bending moment is maximum.
- Example 2-4 For P=8.5kN, determine the allowable stress if the thickness t is 20 mm. Section Properties At the hole A, r = 12 mm; d = 52.8-24 = 28.8 mm; t = 20 mm; Anet = dt = 5.76 x 104 m² 5-12mm 9mm... -$2.8mmThe cylinder of a four stroke diesel engine has the followin, specifications : Cylinder bore :150 mm Maximum pressure : 3.5 MPa Cylinder material : GCI FG200 Factor of safety : 6 Poisson's ratio : 0.25 Determine the thickness of the cylinder wall. Also calculate the apparent and net circumferential stresses in the cylinder wall.A part is loaded with a combination of bending, axial, and torsion such that the following stresses are created at a particular location:Bending: Completely reversed, with a maximum stress of 60 MPaAxial: Constant stress of 20 MPaTorsion: Repeated load, varying from 0 MPa to 70 MPaAssume the varying stresses are in phase with each other. The part contains a notch such that Kf,bending = 1.4, Kf,axial = 1.1, and Kf,torsion = 2.0. The material properties are Sy = 300 MPa and Su = 400 MPa. The completely adjusted endurance limit is found to be Se = 160 MPa. Find the factor of safety for fatigue based on infinite life, using the Goodman criteria. If the life is not infinite, estimate the number of cycles, using the Walker criterion to find the equivalent completely reversed stress. Be sure to check for yielding.
- 9:0. محو التحدید blä 10 FIND STRESS IN Aluminum. IF E st= .200000 MPa, Ealu.=7000O MPa 100 kN RALU.=30 MM Aluminum Steel no one 69 MPa 31 MPa 19 MPa 55 MPa bläi 10 find the shear stress in bolt in pin A 60 kN 1m RST = 20 MMFigure 4 The gas tank shown in Figure 4 is made from A-36 steel and has an inner diameter of 1.50 m. The tank should withstand a gauge pressure of p-5 MPa. Apply a F.S.=1.5 against yielding. a. Express the hoop stress and the longitudinal stress as functions of the thickness t. Assume that the vessel is thin-walled. b. Determine the required minimum wall thickness to the nearest mm using the maximum-shear-stress theory. Neglect the radial stress, assuming that the vessel is subjected to a biaxial stress. c. Prove that the designed by the maximum-shear-stress theory vessel is thin-walled. d. Determine the required minimum wall thickness to the nearest mm using the maximum-distortion-energy theory. Neglect the radial stress, assuming that the vessel is subjected to a biaxial stress. e. Prove that the designed by maximum- distortion-energy theory vessel is thin-walled. f. Assume that the vessel has thickness t designed by maximum-distortion-energy theory. Take an infinitely small volume…The ultimate stress for the hitch ball is 60,000 ksi. (Capacity) The advertisement information is listed in the photos. 1) What is the maximum shear stress? (Demand) (Note you'll need to use half circle for Q) 2) What is the demand capacity stress ratio? V POWER TORQUE. PTWO011 HITCH BALL BOLA DE ENGANCHE 2" BALL DIAMETER 6000 LB. RATING 3-1/4" SHANK LENGTH PTWO011 POWER TORQUE. HITCH BALL BOLA DE ENGANCHE 1" SHANK DIAMETER
- 4 In hardness test, a force of 3000 kgf applied using steel ball of 10 mm, the result hardness value is (BHN=200+N) where N is your number in class. Calculate the mean depression w bli nöy :diameters (d)? N=92A part is loaded with a combination of bending, axial, and torsion such that the following stresses are created at a particular location: Bending - Completely reversed, with a maximum stress of 60 MPa Axial - Constant stress of 20 MPa Torsion - Repeated load, varying from 0 MPa to 50 MPa Assume the varying stresses are in phase with each other. The part contains a notch such that Kibending = 1.4, Kaxial = 1.1, and K. = 2.0. The material properties are Sy = 300 MPa and S, = 400 MPa. The completely adjusted endurance limit is found to be Se= 200 MPa. Find the factor of safety for fatigue based on infinite life. If the life is not infinite, estimate the number of cycles. Be sure to check for yielding. f,torsionAn AISI 1035 CD steel tube has an OD = 45 mm and a wall thickness of 5 mm. What maximum external pressure can this tube withstand if the largest principal normal stress is not to exceed 80 % of the minimum yield strength of the material? Assume ?? = 0.