2. The breaking stress of aluminium is 7.5 x 10' N/m². Find the greatest length of aluminium wire that can hang vertically without breaking. Density of aluminium is 2.7 x 10 kg m [2836 m]
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![2. The breaking stress of aluminium is 7.5 x 10' N/m. Find the greatest length of
aluminium wire that can hang vertically without breaking. Density of aluminium
is 2.7 x 10' kg m.
[2836 m]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9925fc17-f8f7-42e4-90a9-3b4829b5c540%2Fb6c60937-30ed-4e33-96e5-66ac716cb0ce%2Fowcuj8h_processed.jpeg&w=3840&q=75)
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- K=17 so Mx=23kNm Strength of material question.a concrete beam simply supported at both ends 300 × 600mm it stressed by 3 cables of 700 mm each ps=1200 n/mm2 e=100mm loss of stress 30% beam is carrying an imposes load of 20 kn/m ec=30, 000 n/mm2 es=2×10 n/mm2 calculate maximum deflection of the beam neglect the impact of creep and shrinkage span of beam=8m solutionThe minimum safe bending radius of a certain polyethylene tube is theoutside diameter times 31⁄2. The tube has an outside diameter of 3⁄8 inch.What is the minimum bending radius?
- A steel rod, which is free to move, has a length of 200 mm and diameter of20 mm at a temperature of 15°C. If the rod is heated uniformly to 115°C,determine the length and the diameter of this rod to the nearest micron atthe new temperature if the linear coefficient of thermal expansion of steel is12.5 * 10-6 m/m/°C. Is there a stress on the rod at 115°C?A copper alloy wire of 1.9mm diameter and 30m long hangs freely from Tower. What will be its extension due to the self-weight of the wire? The specific weight of the copper and its modulus of elasticity are 89.2 kN/mm3 and 90 x 10N/mm2 respectively. Comment on the solutionA 1-m long steel bar(E = 200 GPa) of 10x10mm dimension fixed at both ends is heated by 90 ᴼC from initially 30 ᴼC. What is the normal stress, in MPa, induced in the system due to change in temperature? Use α= 12x10-6 per ᴼC.
- steel rod, which is free to move, has a length of 200 mm and diameter of20 mm at a temperature of 15°C. If the rod is heated uniformly to 115°C,determine the length and the diameter of this rod to the nearest micron atthe new temperature if the linear coefficient of thermal expansion of steel is12.5 X 10-6 m/m/°C. Is there a stress on the rod at 115°C?A nuclear fuel pellet consists of an aluminum cladding[E1 = 90 GPa; α1 = 42.2 × 10-6 /°K] with an outsidediameter of D and an inside diameter of d, restrained toa uranium core [E2 = 190 GPa; α2 = 15.9 × 10-6 /°K] witha diameter d. [D = 17 mm; d = 14 mm; L = 13 mm]Determine the normal force in the aluminum cladding ifthe temperature of the pellet is raised by ΔT = 317 °K.[Hint: The total axial deformations in both materials areidentical. The axial forces induced in both aluminum anduranium are also identical with opposite signs.]A railroad track is laid at a temperature of 15 oF with gaps of 0.01 feet between the ends of the rails. The rails are 33 ft long. If they are prevented from buckling, what stress will result from a temperature of 110 oF? (k = 6.5 x 10-6 per oF)
- CLO 1: A rigid beam rests on two bronze bars 700 mm long. Another aluminum bar is placed between them which is 699.93 mm long. If the allowable stresses are Salum = 90 MPa and Sbronze = 80 MPa, find the maximum weight of the beam that the system can support (in KN). Note: please help us in this sample problemA submersible cylinder used in research has acylindrical pressure hull of outside diameter3.0 m and a wall thickness of 150 mm. It isconstructed of an aluminum alloy, having ayield point of 450 MPa. Determine thetangential stress, in terms of MPa, in thecylindrical portion of the pressure hull whenthe vehicle is at its operating depth of 5500 mbelow the surface of the sea. Consider seawater to have a specific weight of 104 N/m3the cross-sectional area of the bar 1 of the two bars supported on the left and right sides is 1.2 cm^2, the coefficient of thermal expansion is 20.9 10^(-6)/K; The cross-sectional area of bar 2 is 3 cm^2 and its coefficient of thermal expansion is 25.4 10^(-6)/K. Since the modulus of elasticity of the material is 207 GPa, these two bars are heated to 99 °C.a) What will be the change in length (mm) of bar 1?b) What is the stress in bar 1 in MPa?c) What is the stress in bar 2 in MPa?