Answered: What is the design stress in psi of an…

What is the design stress in psi of an ASTM A313, gage number 8 spring wire. The type of application requires a factor of 0.34 for the type of service.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Required information A solid square rod is cantilevered at one end. The rod is 0.6 m long and supports a completely reversing transverse load at the other end of ±1.7 kN. The material is AISI 1080 hot-rolled steel. If the rod must support this load for 5 x 104 cycles with a design factor of 1.5, what dimension should the square cross section have? Neglect any stress concentrations at the support end. What will the strength of the metal be at 5 x 104 cycles? The strength of the metal at 5 x 104 will be MPa.
A compression spring needed for a machine operation has to fit within a 1-in. diameter hole. To allow for some clearance, the outside diameter of the spring should not be larger than 0.9 in. To ensure a reasonable coil, use a spring index of 9. The spring will be repeatedly cycled from its free length of 3 in. to a length of 2 in. The solid length of the spring is 1 in. The spring should have squared ends and is to be made of music wire. (a) Determine a suitable wire diameter. (b) Determine a suitable number of coils. (c) Determine the spring rate. (d) Calculate the maximum shear stress the spring will experience during fatigue cycling. (e) Show on a stress vs. time plot how the fatigue cycling on the spring will occur. (f) If the spring is unpeened, what will be the shear endurance limit of the spring material in completely reversed cycling? (g) Can the spring survive a million fatigue cycles? Show by calculation.
Urgent
(do both (SR) & Euler and select the proper analysis) no metrics plz
Determine the equivalent spring stiffness constant of the following.
Design a helical compression spring for a maximum load of 1000 N for a deflection of 25 mm using the value of spring index as 5. The operating load is considered as average load service. Choose a suitable material from table (23.1) for your design. If the same helical compression spring that was designed in Q1, is subjected to a load which vary from 200 N to 600 N. Based on the new condition, will the spring endure the new load? Consider that the allowable shear stress in table (23.1) is the yield stress and the endurance shear stress is 0.8 to 0.9 of the yield in shear. mechanical desgin pls solve fast
1) A compression spring has square edge and ground ends. The total coil number of spring is 12 and Brinell Hardness number is HB=380. The free length of the spring is 200 mm. The spring is assembled into a machine by compressing, when the machine runs, the spring is compressed 6 mm- 40 mm 18 mm 100 mm. 10 mm a) Is the siring likely to buckled. b) Would this spring developed a permanent set if compressed solid? c) What is the critical frequency?
A joint is subject to a cyclic loading. There is an acceptable preload of 1,200 lbs, and the axial load is fully reversed with an amplitude of 1,600 lb. THe tensile bolt area is 0.160 in^2. Ignore any design factors and (take all nd=1) and assume the loads include the 1.2 bolt factor. If the joint constant is 0.25, the alternate and means axial stress for the bolt are: a) sa = 1,250 psi sm = 0 b) sa = 1,250 psi sm = 8,750 psi c) sa = 2,500 psi sm = 0 d) sa = 2,500 psi sm = 7,500 psi
Data: r=0.25 inch, d=0.4 pig and h=0.5 inch, wi=2.5 inch and w= 1.5 inch.The forces fluctuate between a tension of 14 Kips and a compression of 5 Kips. It is made of AISI 1018 CD. steel.The connecting element in the figure is failing. What is the most critical point and give recommendations to improve the situation.