270 KNCollar1. The round bar shown in the figure has steel, brass, and aluminum sections. Axial loads are appliedat cross sections A, B, C, and D. If the allowable axial stresses are 125MPa in the steel, 70MPa inthe brass, and 85MPa in the aluminum, determine the diameters required for each of the sectionsAssume that the allowable stresses are the same for tension (T) and compression (C). IncludeSolution and Free Body Diagram.Steel245 KN-0.5m-Brass100 mm150 mmBell crank200 kN.-0.5 mC Aluminum D-0.5 mSupport bracket-25 mm2. A vertical shaft is supported by a thrust collar and bearing plate as shown in the figure. Determinethe maximum axial load that can be applied to the shaft if the average punching shear stress inthe collar and the average bearing stress between the collar and the plate are limited to 75MPaand 100MPa, respectively. Include Solution and Free Body Diagram.6 mm225 KNDescriptionInternal axial force on steel section, Rs=Internal axial force on brass section, ReInternal axial force on aluminum section, RRequired Diameter for Steel section, Ds=Required Diameter for Brass section, DRequired Diameter for Aluminum section, DDescriptionAxial load from Punching Shear load/force of the Collar, Pv=Axial load from Bearing load between the collar & plate, Pa =Therefore, the Safe Maximum axial load Papplied to the shaft is, P=Shear Area of the Punching Shear Stress in the collar, Av=Bearing Area of the Bearing Stress betweenthe collar and plate,As =8 mm6 mm3. The bell-crank mechanism shown in the figure is in equilibrium for an applied load of P=7KNapplied at A. Assume a=200mm, b=150mm, and B-650. Determine the minimum diameter Drequired for pin B for each for each of the following conditions: (a) The average shear stress in thepin may not exceed 100MPa, (b) The bearing stress in the bell crank may not exceed 100MPa, (c)The bearing stress in the support bracket may not exceed 165MPa.(1)DescriptionMagnitude of force F₁ at pt. C.X-component of reaction at pt. B.Y-component of reaction at pt. B,Total reaction at the pin support at pt B,Pin Diameter for Shear stress in the pin,Pin Diameter for Bearing stress in the bell crank,Pin Diameter for Bearing stress in the support bracket.deTherefore, the Required safe minimum diameter ofof the pin at the support,MagnitudeF₁Rax=Ray=R₂ds=das =KNKNKNd=mmMagnitudeMagnitudeKNKNKNKNmmmmmmmm

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270 KN 1. The round bar shown in the figure has steel, brass, and aluminum sections. Axial loads are applied at cross sections A, B, C, and D. If the allowable axial stresses are 125MPa in the steel, 70MPa in the brass, and 85MPa in the aluminum, determine the diameters required for each of the sections Assume that the allowable stresses are the same for tension (T) and compression (C). Include Solution and Free Body Diagram. Magnitude Steel 245 AN- 0.5m- Brass C Aluminum D 200 kN-> -0.5 m -0.5m 225 KN Description Internal axial force on steel section, R Internal axial force on brass section, Re Internal axial force on aluminum section, R Required Diameter for Steelsection, D Required Diameter for Brass section, Du Required Diameter for Aluminum section, D KN KN KN mm

270 KN 1. The round bar shown in the figure has steel, brass, and aluminum sections. Axial loads are applied at cross sections A, B, C, and D. If the allowable axial stresses are 125MPa in the steel, 70MPa in the brass, and 85MPa in the aluminum, determine the diameters required for each of the sections Assume that the allowable stresses are the same for tension (T) and compression (C). Include Solution and Free Body Diagram. Magnitude Steel 245 AN- 0.5m- Brass C Aluminum D 200 kN-> -0.5 m -0.5m 225 KN Description Internal axial force on steel section, R Internal axial force on brass section, Re Internal axial force on aluminum section, R Required Diameter for Steelsection, D Required Diameter for Brass section, Du Required Diameter for Aluminum section, D KN KN KN mm

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter5: Beams

Section: Chapter Questions

Problem 5.2.1P

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