If core diameter of bolt is 13.8cm the it’s nominal diameter is given by?

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Determine the secondary shear stress acting on the bolt 3 and its direction. The bolts are equidistant having separated by 60mm and the margin to the left and right is 25mm.Also P=5kN acts at a distance of 200mm from the channel.

asked Jan 23 in Machine Design by Carter (89.5k points)

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Refer to fig 1. Two plates are fastened by means of two bolts. The yield strength of bolt is 400N/mm² and factor of safety is 4. Determine the size of the bolts.

asked Jan 25 in Machine Design by Carter (89.5k points)

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Which bolt is under maximum shear stress?

asked Jan 25 in Machine Design by Carter (89.5k points)

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Arrange the bolts in order of decreasing shear stresses.

asked Jan 27 in Machine Design by Carter (89.5k points)

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In figure 2, determine the size of the bolts.

asked Jan 27 in Machine Design by Carter (89.5k points)

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Referring to fig 2, Determine the primary shear force.

asked Jan 23 in Machine Design by Carter (89.5k points)

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Referring to fig 3, Determine the secondary shear force.

asked Jan 23 in Machine Design by Carter (89.5k points)

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A flange of radius 200mm is fastened to the machine screw by means of four cap screws of pitch circle radius 150mm. The external force P is 20kN which is loaded at 160mm from the machine screw. There are two dowel pins to take shear load. Determine the core diameter of cap screw if permissible tensile stress in cap screw is 40N/mm².

asked Jan 23 in Machine Design by Carter (89.5k points)

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A machine vice whose length of the handle is 150mm and the coefficient of friction for thread and collar are 0.15 and 0.17 respectively has a force applied at handle of 125N. Also the outer and inner diameters of collar are 55mm and 45mm respectively. Find the screw torque in terms of clamping force W if nominal diameter=22mm and pitch=5mm.

asked Feb 2 in Machine Design by Carter (89.5k points)

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A machine vice whose length of the handle is 150mm and the coefficient of friction for thread and collar are 0.15 and 0.17 respectively has a force applied at handle of 125N. Also the outer and inner diameters of collar are 55mm and 45mm respectively. Find the overall efficiency if nominal diameter=22mm and pitch=5mm.

asked Jan 27 in Machine Design by Carter (89.5k points)

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For a double threaded screw, what will be the tangent of helix angle if nominal diameter and pitch are 100mm and 12mm respectively?

asked Jan 23 in Machine Design by Carter (89.5k points)

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A machine vice whose length of the handle is 150mm and the coefficient of friction for thread and collar are 0.15 and 0.17 respectively has a force applied at handle of 125N. Also the outer and inner diameters of collar are 55mm and 45mm respectively. Find the clamping force W if nominal diameter=22mm and pitch=5mm.

asked Jan 23 in Machine Design by Carter (89.5k points)

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A machine vice whose length of the handle is 150mm and the coefficient of friction for thread and collar are 0.15 and 0.17 respectively has a force applied at handle of 125N. Also the outer and inner diameters of collar are 55mm and 45mm respectively. Find the collar torque in terms of clamping force W assuming uniform wear theory if nominal diameter=22mm and pitch=5mm.

asked Jan 23 in Machine Design by Carter (89.5k points)

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Which bolt is under maximum stress if dowel pins are used to relieve cap screws from shear stress?

asked Jan 23 in Machine Design by Carter (89.5k points)

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Find the size of the bolt using maximum principal stress theory.

asked Feb 2 in Machine Design by Carter (89.5k points)

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In nut and bolt fastener, nut is generally held stationary while bolt is rotated.

asked Jan 23 in Machine Design by Carter (89.5k points)

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Which bolt is used a criterion for designing?

asked Jan 23 in Machine Design by Carter (89.5k points)

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Shank is the portion of bolt between the head and the thread.

asked Jan 23 in Machine Design by Carter (89.5k points)

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Determine the angle θ so that the force in the bolt 1 has maximum value.

asked Jan 23 in Machine Design by Carter (89.5k points)

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Find the radius of Mohr circle which can be made from the shear stress and tensile stress acting on bolts.(Consider bolt under max stress and area of bolt is A)

asked Jan 23 in Machine Design by Carter (89.5k points)

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Which bolt can be used as criteria for designing?

asked Jan 23 in Machine Design by Carter (89.5k points)

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Find the torque required to raise the load of 15kN and mean diameter of triple threaded screw being 46mm. Also given pitch=8mm and coefficient of friction is 0.15.

asked Jan 27 in Machine Design by Carter (89.5k points)

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The transverse shear stress at the root of the threads in the nut can be given by?(symbols have their usual meaning, z=number of threads in nut)

asked Jan 23 in Machine Design by Carter (89.5k points)

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If the length of the shank is doubled, then strain energy absorbed by shank

asked Jan 25 in Machine Design by Carter (89.5k points)

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If secondary shear stress acting on any bolts is given by Cxr₁ where r₁ is the distance of bolt from CG, then find the value of C. Bolts are equidistant with spacing of 100mm. Force P=30kN.

asked Jan 23 in Machine Design by Carter (89.5k points)

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