ME 350 - Lab 8 - KNOCKE

a=3 CVE 349 HOMEWORK 1 b=2.5 Q.1. d=3 P=12 27 9. a *Analyze the structure under given loading. *Design members 14,12,42,45,43,23,53 *Design joints 1,2,3,4 and 5. * Use parameters that are assigned to you. Those who use different parameters will be penalized and get 0. Units of a,b and c are meters and P is kN.

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The critical stress element of a machine part is provided below. The engineer is considering two materials and the factor of safety is a concern. a. AISI 1025 CD steel (Sy 415 MPa, Sut = 505 MPa) b. ASTM Class 30 Gray Cast Iron (Sut = 214 MPa and Suc = 751 MPa) 70 MPa 80 MPa For a Non-Conservative Design, which of the two materials do you consider safe and why? 60 MPa

The answer is one of the options below please solve carefully and circle the correct option Please write clear .

Table 1: Mechanical behavior of human cadaver tibial bones during pure torsional loads applied with the proximal tibia fixed and the torque applied to the distal tibia until there is bone fracture. Medial condyle Tibial tuberosity- Medial malleolus -Lateral condyle Head of fibula Ti-6Al-4V grade 5 Stainless Steel 316L Region of bone resection -Lateral malleolus L = 365 mm Annealed Annealed Torque at ultimate failure (bone fracture) Displacement (twist angle) at ultimate failure Torsional Stiffness Table 2: Mechanical properties of candidate materials for the rod. Material Process Yield Strength (MPa) 880 220-270 Do = 23 mm Elastic Modulus (GPa) 115 190 d₁ = 14 mm Figure 1: Representative tibia bone showing the resection region (blue arrows) and median length (L). A circular cross section of distal tibia taken at the level of resection) showing the median inner (di) and outer (Do) diameters of the cortical bone. A tibia bone after resection with the proposed metal solid rod (black line)…

Question 5 Answer the following questions concisely (no more than half a page per question): a What do you understand by strength, stiffness and stability in the Mechanics of Solids context? b Identify, sketch and explain how to calculate all possible failure modes of a bicycle chain (for the link plates and the pin). c What is/are the difference(s) between von Mises (Maximum Distortion Energy) and Tresca (Maximum Shear Stress) failure criteria? d Give a structural engineering explanation to the placement of pinnacle statues on top of flying buttress columns of Gothic Cathedrals. e Give a structural engineering explanation to the structural failure of the "grabbing" arms of the capture vehicle used to raise the Russian submarine K- 129.

need help with this review part A engineering of materials

Part A and B circle final answers The next 2 question relate to the modified Goodman diagram with the following baseline data. A part is made from steel with the following properties: Ultimate tensile strength is 450 MPa Yields stength is 260 MPa Fully-corrected endurance limit is 180 MPa The part is subjected to a time-varying load with σmax = 150 MPa and σmin = 90 MPa . Part A The safety factor with respect to fatigue is?? Part B - the safety factor with respect to yielding is?

only HANDWRITTEN answer needed ( NOT TYPED)

Test Specimen 4140 CF steel 6061 T6 Al Gray Cast iron 40 FC Brass 360 Impact Energy (J or ft-lb) 48.5 ft-lb 25 ft-lb 12 ft-lb 27 ft-lb Impact Strength (J/m or ft-lb/in) 123.096 ft-lb/in 63.452 ft-lb/in What is the final analysis/ overall observation from the data? 30.457 ft-lb/in 68.528 ft-lb/in

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How did they Got Pcr=4K/L

O A cylindrical rod made from an unknown metal is 350mm long and has a diameter of 10mm. The rod is subjected to a tensile load. It experiences only elastic deformation and elongates by less than 1.0mm under an applied load of 19,800N. Could any of the four metals listed in the table below could be the unknown metal? If so which ones and why? Material Modulus of Yield Ultimate Elasticity / GPa Strength / MPа Tensile Strength / MPа Aluminium 70 255 420 alloy Brass 100 345 420 Copper alloy Steel 110 250 290 207 450 550

Question : Two springs are arranged in series with spring constants 17 N/mm and 26 N/mm. A force of 71 N is applied. The deflection is mm?? Round to three significant figures

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