Two parts of a machine, both made from steel, areheld together by 9 equally-spaced M6 x 1.0 grade 8.8bolts that are uniformly tightened to provide a totalinitial clamping force of 77 kN. Each bolt has a proofstress of 600 MPa, and a tensile area of 20.1 mm². Theelasticities are such that the joint constant is 0.18.A uniform static tensile load of 36 kN is applied to theentire joint after it has been preloaded.What is the smaller value of either the factor of safetyagainst joint separation or the load factor in thisapplication? Express your answer to a resolution of twodecimal places.

Smaller value of FOS is 2.60 which is For joint separation under the applied load.Explanation:Given…

Answered: Two parts of a machine, both made from…

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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You are in charge of designing a new fixture for a “universal testing machine” that will attach a tensile specimen to the machine using a clevis—a U-shaped piece with holes drilled through the two arms—and a cylindrical pin that passes through the clevis and the specimen. If the maximum load exerted by the machine is 30 kN and the pin is to be made of some sort of steel, what is the minimum pin diameter needed to ensure that the shear stress in the pin does not exceed 600 MPa? Assume that the steel has similar elastic properties to pure Fe.
Let's considera rod having a solid circular cross-section with diameter of 4 mm and it is made of a material having a Young's modulus E= 200 Gpa and a Poisson's ratio of 0.3. If a tensile force Fis subjected to that rod cross-section, the diameter becomes 3.995 mm. determine the applied force F Select one: OF 5236 N O F=15708 N Clear mopshoe Finish attempt
4. Determine the design stress for bolts in a cylinder cover where the load is fluctuating due to gas pressure. The maximum load on the bolt is 50 kN and the minimum is 30 kN. The load is unpredict- able and factor of safety is 3. The surface of the bolt is hot rolled and the suface finish factor is 0.9. During a simple tension test and rotating beam test on ductile materials (40 C 8 steel annealed), the following results were obtained : Diameter of specimen =12.5 mm; Yield strength= 240 MPa; Ultimate strength= 450 MPa; Endurance limit = 180 MPa. [Ans. 65.4 MPa]
3. An M16 x 2 bolt with a slotted hex nut is used to clamp together two 25 mm steel plates. The joint is assembled with a size 16 N washer underneath the bolt head. The bolt is a 5.8 class metric grade, with a proof strength of 380 MPa. The joint is intended to be permanent. Determine a suitable length for the bolt, rounded up to the nearest standard size in millimeters. Calculate the bolt stiffness, the elongation of the bolt after the necessary preload is developed, and the bolt torque required to apply the preload. Assume that coefficients of friction between the bolt, nut, and collar are all ~0.15. For steel, use E = 207 GPa. Standard threaded fastener lengths, dimensions of hexagonal nuts, and dimensions of metric plain washers are provided in the textbook appendices.
An M5, coarse-pitch socket head cap screw with a nut is used to clamp together two 6 mm aluminum plates (E = 71 GPa). The fastener is 25 mm long and has an e of 209 GPa. What is the stiffness of the member in the clamped zone? Express your answer in units of N/um. Type your answer
Agui - 4550/2 =2276 two plates each with thickness t - 16 mm are bolted together with 6-222 mndia. bolts firming alap Joint Bolt spacing are follows St- $40mm S2 - 80mm, S3=150mm effective bolt hole dia. is 25mm A36 is used. Compute the allowable tensile Strength P t = 16 mm &t 52 747₁ 0 O O 40 60 80 40 +=16mm S-400 $3-100 S2-40 7 @ 4umm P
For the joint shown below, a Metric grade 8.8 M90x6 screw connects two plates. The joint stiffness constant (C) has already been calculated to be 0.3442. The pre-load (F;) in the screw is 2045.9 kN. If an external axial load, varying from -16.4 kN to 954.4 kN, is applied to the connection, what is the factor of safety against fatigue, according to the modified Goodman criterion (< 1 if it would eventually fail)? P 10000000000| ered swers 1.4135 (with margin: 0.0282)
NEED ANSWER ASAP !!! The axial load 274 kN applied to the lap joint is distributed equally among the three 26.5-mm-diameter rivets. What is the bearing stress (in MPa) between a plate and a rivet if w = 135.4 mm and t = 29.5 mm?
See the set of bars for made of a material that has a yield strength of 350 MPa, determine the minimum h1 and h2 dimensions required. Apply a safety factor F.S. = 1.5 without flow. Each bar is 12 mm thick
Question 3 A typical Can dimensions are given as 63 mm in diameter, 120 mm in height and 0.1 mm thickness. These dimensions were measured on an aluminium beverage can which was carefully cut in half and measured the wall thickness and can diameter. Calculate the critical buckling load for the can and indicate if this is greater than or less than your weight. Does the can buckle? Assume the yield strength is 180 MPa and the elastic modulus is 69 GPa. A= 1= rg= The slenderness ratio is: 0J = x10^-9 m^4 The slenderness ratio is: Johnson equation )/( x10^-5 m^2 The buckling load P= m The buckling load An MPa N ) =
A machine member is to be designed to operate under a stress ranging from 10,000 psi compression to 18,000 psi tension. The corrected endurance limit of the part is 28,000 psi. What is the factor of safety against fatigue failure if the yield strength, Sy, is 36,000 psi and the ultimate strength, Sul, is 40,000 psi.
One piece is made of a metal alloy with a yield limit of 180 MPa. At a certain point in the part that is under a flat state of tension, it is known that one of the main stresses is compressive and is half the magnitude of another main stress, which is tensile. Specify the maximum magnitude that the traction component can have, considering that the project requires the adoption of a safety factor 2.0 against flow, according to the criteria of Von Mises and Tresca.

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