A blacksmith immersed a piece of steel at 600°F into a large bucket of water with a temperature of 65°. After 1 minute the temperature of the steel was 200°. How much longer must the steel remain immersed to bring its temperature down to 97°? The steel must remain immersed ☐ more minute(s). (Round to the nearest tenth as needed.)
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- A 13 in length of aluminum tubing (with E = 11.4 x 106 psi and = 12 x 10-6 /deg F) having a cross-sectional area of 1.6 in2 is installed with “fixed” ends so that it is stress-free at 70 deg F. In operation, the tube is heated throughout to a uniform 500 deg F. Careful measurement at the higher temperature indicates that the fixed ends separate to 13.008 in. What loads are exerted on the ends of the tube, and what are the resultant stresses?Use the giuven values: Aluminum: E = 10 x 106 psi, α = 12.8 × 10-6 in/(in·°F) Bronze: E = 12 x 106 psi, α = 10.5 × 10-6 in/(in·°F) Show you complete solution.Compute the volume change of a solid copper cube, 40 mm on each edge, when subjected to a pressure of 20MPa. The bulk of modulus for copper is 125GPa. Please solve this problem with complete and detailed solution. Thank you
- The aluminum and bronze cylinders are centered and secured between two rigid end-plates by tightening the two steel bolts. There is no axial load in the assembly at a temperature of 50°F. Find the stress in the steel bolts when the temperature is increased to 200°F. Use the following data: A (in.²) a (/°F) E (psi) Aluminum cylinder 2.00 12.8 × 10–6 10 × 106 Bronze cylinder 3.00 10.5 × 10–6 12 × 106 Each steel bolt 0.75 6.5 × 10–6 29 × 106 1.0 in. -3 in.→ →-4 in. F1.0 in. Aluminum BronzeA lead cylinder is placed into a blind hole cut into a large tungstenblock, Assume it is a tight fit. 50 MPa pressure is applied to the top of the cylinder.The cylinder is 100 mm long, and 25 mm in diameter. c)How much shorter will the cylinder get under load? d)What is the volume change? e)Supposethere was a “new lead alloy”where the supplierclaimed it had a Poisson’sratio of0.75. Explain why this claimdefies logic.A rigid beam rest on two bronze bars 700mm long. Another aluminum bar is placed between them which is 699.93mm long. If the weight of the beam is 375KN, determine the stress in the aluminum bar in MPa. (Round your answer to 3 decimal places) (Exclude your unit in the answer box) Bronze Alum 850 1500 Ain mm E in GPa 70 83 bronz alum bronze
- Which of the glass do you select from the table below to join silicon carbide (SiC) rods. Justify your answer and show complete work. Elastic modulus Thermal expansion (GPa) Material/properties Thermal coefficient (x10/°C (MPa.m2) | conductivity (W/m.K) 120 at 25-1000°C) SiC 410 4.0 4.6 Glass I 70 0.5 0.6 1.38 Glass II 75 4.5 1.0 2.00 Glass III 72 8.0 1.0 2.00application of fractional losses in pipesQ- The surface area of a plate is 0.4 m² and its weight is 500 N which slides down on an inclined plane at 30° to the horizontal at a constant speed of 4 m/s. If the inclined plane is lubricated with an oil of dynamic viscosity 2 poise. Find the thickness of lubricant film.
- A rectangular nylon [E = 8 GPa; ?= 0.35; ? = 24 ×10 6/°C] plate has a circular hole in its center. At an initial temperature of T¡ = 15°C, the plate width is b = 260 mm, the plate height is h = 160 mm, the diameter of the central hole is d = 45 mm, and the thickness of the plate is t = 17 mm. At a final temperature of Tf= 52°C, determine (a) the diameter d of the central hole. (b) the thickness t of the plate. b ha)Find the thermal deformation (in inches) of the steel bolt. (Write your answer to 6-decimal places.) b)Find the thermal deformation (in inches) of the aluminum tube. (Write your answer to 6-decimal places.)c)Find the stress (in psi) induced in the steel bolt by the temperature change.A copper tube having a cross sectional area of 2000 mm2 and a length of 300 mm is rigidly fixed to two rigid caps on its longitudinal ends. Four steel bolts, each having a diameter of 22 mm, are symmetrically arranged parallel to the axis of the tube and are slightly fastened to the rigid caps, as well. The temperature of the assembly is then raised to 70oC. Take the elastic modulus for Copper and Steel as ECU=100 GLa and EST=200 GPa respectively; the coefficient of linear expansion for Copper and Steel as aCU=16x10-67°C and aST=12x10-6/°C respectively. Calculate the load carried by the copper tube and the load carried by each steel bolt