The principal strains at a point on the aluminum fuselage of a jet aircraft are
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- Determine the maximum normal stress in the bar. The diameter is 1.5cm.F1 = 7KN F2 = 6KN F3 = 2KN F1 = 9KNarrow_forwardThe pipe assembly shown is subjected to a force F = 400 N. The pipe has an inner diameter of 20 mm and an outer diameter of 30 mm. It is made of steel with Sy = 250 MPa. Determine the safety factor at point A using the maximum shear stress theory. Select one: a. NA = 1.843 b. NA = 3.224 c. NA = 2.580 d. NA = 4.299arrow_forwardThe strain at point A on the pressure-vessel wall has components Px = 480(10-6), Py = 720(10-6), gxy =650(10-6). Determine (a) the principal strains at A, in the x9y plane, (b) the maximum shear strain in the x9y plane, and (c) the absolute maximum shear strain.arrow_forward
- Indicate the points on the stress-strain diagram which represent the proportional limit and the ultimate stress.arrow_forwardA steel cable having a diameter of 0.4 in. wraps over a drum and is used to lower an elevator having a weight of 80 lb. The elevator is 150 ft below the drum and is descending at the constant rate of 2 ft>s when the drum suddenly stops. Determine the maximum stress developed in the cable when this occurs. Est = 29(103) ksi, sY = 50 ksi.arrow_forwardThe strain gage is placed on the surface of the steel boiler as shown. If it is 0.5 in. long, determine the pressure in the boiler when the gage elongates 0.2(10-3) in. The boiler has a thickness of 0.5 in. and inner diameter of 60 in. Also, determine the maximum x, y in-plane shear strain in the material. Est = 29(103) ksi, nst = 0.3.arrow_forward
- Determine the principal stresses at points A and B of the cylinder. Consider: L = 70 mm; d = 20 mm; F = 12 kN; P = 15 kN; T = 800 Nm.arrow_forwardBefore loading the plate, mark a line with the inclination shown. After the load is applied, the slope of the line decreases by 5x10^-3 rad. Determine the normal stress ?. Consider E = 2.1x106 kgf/cm^2 and v = 0.30. Express your answer in units of kgf/cm^2.arrow_forwardThe rod BD is made of material with G1= 124 GPa has a diameter 34 mm is bonded to the tube CA at point B, the tube made of material with G2=211 GPa has an outer diameter 73 mm and wall thickness of 10 mm. If T1=579 N.m and T2=1042 N.m, answer the following questions: The maximum shear stress of the rod BD is The maximum shear stress of the tube CA is The maximum shear stress of the assembly is The angle of twist between D and B is The angle of twist between C and A is The angle of twist at D is Your answer The angle of twist between C and B is Your answer The reaction at point A isarrow_forward
- The pipe assembly shown is subjected to a force F = 7 kN and P = 14 kN. It is made of steel with Sy = 250 MPa. Determine the safety factor at point H using the maximum shear stress theory. Select one: a. NH = 6.427 b. NH = 3.570 c. NH = 5.355 d. NH = 4.590arrow_forwardDetermine the principal stresses, the maximum in-plane shear stress, and average normal stress. Specify the orientation of the element in each case.arrow_forwardA steel pipe with an outer diameter of 50 mm and a wall thickness of 5 mm is subjected to aninternal pressure of 10 MPa and an axial load of 20 kN at an angle of 45 degrees to the axis of thepipe. Determine the maximum axial stress and maximum hoop stress developed in the pipe.arrow_forward
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