Q3/ For the Aluminum cantilever, shown in Fig.2 below, the factor of safety against fatigue is2.4, the sensitivity factor 0.7, the surface finish factor is 0.91, the size factor is 0.6, Sut 320 MPaand yield strength is 61 Mpa. Calculate, using a proper design theory, the diameter at the fillet.Neglect the transverse shear stress.Fig.20.2d-50 kN(15 Marks)100mm150kN200mm

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Answered: Q3/ For the Aluminum cantilever, shown…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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4) A sophisticated machinery design has a flat bar fillet component with a thickness of 10mm. For an upgraded version of this machinery,this component is replaced with a flat bar with a hole (without a fillet part). If the thickness of to plate is to be reduced by 20% and allowable stress, largest axial load and stress-concentration factors are to remain same, calculate the values of major width D and hole's radius r for the new component. For the flat bar with fillet: D = 120 mm d = 60 mm r = 8.1 mm Allowable stress = 135 MPa
MECH.ENG. DESIGN 1 PART 2
Assume suitable value for any missing data. Two cylindrical parts are to be assembled to make an interference fit. The nominal diameter of the assembly is 100 mm. Before assembly, the inner member (copper) has an outer radius that is 0.2 mm larger than the inner radius of the outer member (aluminum). If there is no other force acting on the assembly, determine the maximum and minimum principal stress in both the members. Assume Poisson's ratio of 0.3 for both the materials. Also take rj = 30 mm for copper cylinder and ro = 80 mm for aluminum cylinder.
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69 alll O ... ۱:۲۰ ۱ ص Sheet 3.pdf Sheet 5 Fatigue Design Note: Assume any missing data QI: Aluminum plate shown: Sut=640 Mpa, is 310 MPa Calculate the diameter at the fillet. reliability is 90%, factor of safety is 2, the size Neglect the transverse shear stress. factor is 0.87, notch sensitivity factor is 0.81, machined surface. Determine the plate thickness (t) for infinite life. 0.2d -50 kN 4.5d- P=+ 50 kN +100 100 P-1 50 kN 50 '150KN 100mm 200mm Q5: A steel cantilever shaft.The fillet is 6 mm, Sut= 560 MPa and Sy= 420 MPa. Assume the shaft surface is cold-rolled, operating temperature is 550c, reliability is 50%. Calculate the design safety factor Nrusing Good-Man theory of failure. Q2: A rotating steel shaft shown: carried by bearings A and E. Machined surface, Su = 500 MPa, reliability is 90%, r=3 mm. What is the life of the shaft if design factor 3? 100 100 js KN 200 300 R6 400N M-- ---- 025 6ODN 3r -3r A 300 350 450 500N 250N Q3: A steel cantilever beam: Sut = 550 MPa, notch…
Hexagonal nuts for 6.25mm diameter bolts have a height of 5.5mm. If the ultimate strength of the nut material in shear is 103MPa, what is the most nearly the maximum allowable shear force on the nut thread using a safety factor of 5?
Two links are connected by a single pin and a tensile force F is applied. The links and the pin are made from Aluminum(sigma_y = 35ksi and T_y = 20ksi). The dimension of the link is 5 inch high by 0.5 inch thick. Find the optimal diameter for the pin and the maximum force,F that can be applied to the linkage before incuring permanent deformation.
In a tensile test on a steel tube of external diameter 18 mm and internal diameter 12 mm, an axial pull of 2 kN produces stretch of 6.72x 10^-3 mm in a length of 100 mm and a lateral contraction of 3.62x10^-4mm in outer diameter. Calculate the values of three modulus and Poisson's ratio of the material
Problem 4 only, solve carefully, include the units in every step and draw the diagram. Thanks! A steel tie rod on bridge must be made to withstand a pull of 5000 lbs. Find the diameter of the rod assuming a factor ofsafety of 4 and allowable stress of 14,000 ps
This is a subject of Strength of MAterials, COmpute exactly without shortcut.Show FREE BODY DIAGRAM and COMPLETE SOLUTION thank you
(3) A machine part of uniform thickness t = b/2.5 is shaped as shown and machined all over from AISI C1020, as 2b rolled. The design is for indefinite life for a load repeated from 1,750 lb to 3,500 lb. Let d = b. (a) For a design factor of 1.8 (Soderberg), what should be the dimensions of the part? (b)What is the maximum tensile stress in the part as designed? (4) The same as Problem No. 3, except that cycles of loading should not exceed 10.

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