E (ksi) Yield Strength (ksi) Tensile Strength (ksi) Material Steel alloy 1 Steel alloy 2 125 26,000 73 29,000 58 Titanium alloy 36 106 131 32 16,000 Copper 17,000 10
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A cylindrical rod with a radius of 0.3 in. and a length of 15 in. is subjected to a tensile load. If the rod is to experience neither plastic deformation nor an elongation of more than 0.018 in. when the applied load is 7,000 lb, which of the four metals or alloys listed below are possible candidates? Justify your choice(s).
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- Three materials X, Y, and Z are available for a certain usage. Any material selected must have a good weldability. Tensile strength, stiffness, stability and fatigue strength are required with fatigue strength considered being the most important and stiffness the least important of these factors. The three materials are rated as follows in these factors. Properties X Y Weldability Excellent Рoor Good Tensile strength G E Fair Stiffness Very Good G G Stability G E G Fatigue strength F G E Which material should be selected? Explain your choice.i need quickly please please please Which of these cast iron would allow the greatest amount of plastic deformation before fracture . Nodular cast iron Grey cast iron White cast iron None of them can be worked. If the diameter of steel specimen stretched by tension load is doubled , then it’s tensile strength will be Halved Remain unaffected Doubled Become four times Temperature is proportional with Percent of elongation Tensile strength Modulus of elasticity All above The tensile strength of a steel specimen that have a 182 HB , equals to 490 MPa 910 MPa 627 MPa Not given…Value of one of the properties of A36 steel plate within the limit of its elasticity
- Decode the characteristics of a 6063 T831 aluminum.c). Interpret the following diagram? The effect of carbon and heat treatment on the properties of plain carbon steels. 160 140 Tensile 120 strength 100 Impact energy | 100 Annealed 80 80 Normalized 60 60 Annealed 40 `Yield strength 20-% Elongation Annealed 20 Normalized- 0.2 0.4 0.6 0.8 1.0 Weight percent carbon Figure-4 Yield and tensile strength (ksi) Normalized % Elongation or impact energy (ft • Ib)Sample: Malleable Steel (AISI 4145) Original Diameter: 6.14mm Gauge Length: 55 mm Final Length: 68.12 mm Final Diameter: 3.54mm Load (kN) Deformation (mm) Stress (MPa) 12.95 Strain (%) 0.3838 0.54 0.7841 0.95 26.48 1.3899 1.63 1.9485 2.07 3.3090 3.10 4.5821 4.22 5.9359 5.03 7.0340 5.51 8.2413 6.22 10.9446 7.22 13.1951 8.18 12.8228 8.77 12.2583 9.11 12.5915 9.61 13.2536 10.33 13.6636 10.71 13.9772 11.35 14.5433 12.63 15.1155 13.88 15.4970 15.10 15.6484 17.09 15.4031 17.79 14.7655 18.73 13.6721 19.28 10.4617 19.88
- Task (3) you are asked to perform tensile test on specimens of two different materials (A and B) and you obtained the stress-strain diagram of the two specimens as shown in Figure 2: 400 350 300 250 Material A 200 150 100 50 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 Strain (mm/mm) 50 Material B 30 20 10 0.02 0.04 0.06 0.08 0.1 Strain (mm/mm) Figure 2: Tensile Test Analysis Stress (MPa) Stress (MPa)Consider an 6061-T6 aluminun alloy having an elastic modulus of 75 GPa and yield strength of 260 MPa. What is the modulus of resilience of the given material ?Another of the steel components manufactured by michael's company is steel railway track sections. Thecomponent has a length of 120m (at a temperature of -10°C) and is to be exposed to a temperaturerange of -10°C to 55°C. In order to calculate the gaps which need to be left between the sections michael'scustomer needs to determine the maximum length which each railway track section will expand to andmichael have been asked to carry out the calculation for them. michael have also been instructed to determinethe percentage change in volume and surface area when exposed to the same initial and finaltemperatures. The customer has informed him that the cross sectional profile of the railway track isrectangular and of breadth 14cm and height 32cm. Assume the coefficient of thermal expansion ofsteel is 12x10-6 /°C. Briefly discuss the changes that occur with in the steel as a result of the change intemperature.
- 98) What is another name for austenitic stainless steels?A) p91 steelsB) 18-8 steelsC) p92 steelsD) o1 steelsE) h11 steels 99) which is more important for assembly than its values?A) yield strengthB) hardnessC) sizeD) elastic modulusE) wear behavior 100) which is not one of the general properties shown by almost every metal?A) satietyB) high hardness and strengthC) good wear resistanceD) good thermal conductivityE) good electrical conductivityStrength of materials - EGR 3321A combined section of steel and copper is subjected to a compressive load. Refer to the table below for the properties of each Steel Copper Area, A 900 mm2 1,200 mm2 Modulus of elasticity, E 200 GPa 120 GPa Allowable compressive stress 140 MPa 70 MPa Which of the following most nearly gives the load, in percent, carried by the copper? Select the correct response: 44.44% 55.56% 66.67% O33.33%