Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
10th Edition
ISBN: 9780073398204
Author: Richard G Budynas, Keith J Nisbett
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 8, Problem 75P
A vertical channel 152 × 76 (see Table A–7) has a cantilever beam bolted to it as shown. The channel is hot-rolled AISI 1006 steel. The bar is of hot-rolled AISI 1015 steel. The shoulder bolts are M10 × 1.5 ISO 5.8. Assume the bolt threads do not extend into the joint. For a design factor of 2.0, find the safe force F that can be applied to the cantilever.
Problem 8–75
Dimensions in millimeters.
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1. For a bolted assembly with six bolts, the stiffness of each bolt is k, = 3 Mlbf/in and the stiffness of the
members is km = 12 Mlbf/in per bolt. An external load of 80 kips is applied to the entire joint. Assume
the load is equally distributed to all the bolts. It has been determined to use 1/2 in-13 UNC grade 8 bolts
with rolled threads. Assume a torque co-efficient of K = 0.2.
a. Determine the maximum bolt preload that can be applied without exceeding the proof strength of the
bolts.
b. Determine the minimum bolt preload that can be applied while avoiding joint separation.
c. Determine the value of torque in units of Ibf-ft that should be specified for preloading the bolts if it is
desired to preload to 75% of the proof load.
d. Determine the yielding factor of safety for part c). (based on proof strength)
8-75
A vertical channel 152 X 76 (see Table A–7) has a cantilever beam bolted to it as shown. The
channel is hot-rolled AISI 1006 steel. The bar is of hot-rolled AISI 1015 steel. The shoulder
bolts are M10 × 1.5 ISO 5.8. Assume the bolt threads do not extend into the joint. For a design
factor of 2.0, find the safe force F that can be applied to the cantilever.
8T-8
12
Problem 8-75
in millimeters.
50
-50→-50→261!
125
000
Problem 3: A Hexagonal bolt connects two members. The joint has a gap 1 = 2 in and the applied
load is 2000 lb. Both of the clamped parts are steel. A preload of 90% the bolt's proof
strength will be applied first. For this design, an SAE grade 1, 5/16"-18 UNC-2A bolt
is chosen made from A307 with rolled threads. Washers are included between the head
and the joint, and between the nut and the joint. Determine a suitable length for the
bolt? Find its safety factor against yielding and against joint separation. Are these
values acceptable?
Chapter 8 Solutions
Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
Ch. 8 - A power screw is 25 mm in diameter and has a...Ch. 8 - Using the information in the footnote of Table...Ch. 8 - Show that for zero collar friction the efficiency...Ch. 8 - A single-threaded power screw is 25 mm in diameter...Ch. 8 - The machine shown in the figure can be used for a...Ch. 8 - The press shown for Prob. 8-5 has a rated load of...Ch. 8 - For the screw clamp shown, a force is applied at...Ch. 8 - The C clamp shown in the figure for Prob. 8-7 uses...Ch. 8 - Find the power required to drive a 1.5-in power...Ch. 8 - A single square-thread power screw has an input...
Ch. 8 - Prob. 11PCh. 8 - An M14 2 hex-head bolt with a nut is used to...Ch. 8 - Prob. 13PCh. 8 - A 2-in steel plate and a 1-in cast-iron plate are...Ch. 8 - Repeat Prob. 8-14 with the addition of one 12 N...Ch. 8 - A 2-in steel plate and a 1-in cast-iron plate are...Ch. 8 - Two identical aluminum plates are each 2 in thick,...Ch. 8 - Prob. 18PCh. 8 - A 30-mm thick AISI 1020 steel plate is sandwiched...Ch. 8 - Prob. 20PCh. 8 - Prob. 21PCh. 8 - Prob. 22PCh. 8 - A 2-in steel plate and a 1-in cast-iron plate are...Ch. 8 - An aluminum bracket with a 12-in thick flange is...Ch. 8 - An M14 2 hex-head bolt with a nut is used to...Ch. 8 - A 34 in-16 UNF series SAE grade 5 bolt has a 34-in...Ch. 8 - From your experience with Prob. 8-26, generalize...Ch. 8 - Prob. 28PCh. 8 - Prob. 29PCh. 8 - Prob. 30PCh. 8 - For a bolted assembly with eight bolts, the...Ch. 8 - Prob. 32PCh. 8 - 8-33 to 8-36 The figure illustrates the...Ch. 8 - 8-33 to 8-36 The figure illustrates the...Ch. 8 - 8-33 to 8-36 The figure illustrates the...Ch. 8 - 8-33 to 8-36 The figure illustrates the...Ch. 8 - Prob. 37PCh. 8 - Prob. 38PCh. 8 - 837 to 840 Repeat the requirements for the problem...Ch. 8 - Prob. 40PCh. 8 - 841 to 844 For the pressure vessel defined in the...Ch. 8 - Prob. 42PCh. 8 - Prob. 43PCh. 8 - Prob. 44PCh. 8 - Bolts distributed about a bolt circle are often...Ch. 8 - The figure shows a cast-iron bearing block that is...Ch. 8 - Prob. 47PCh. 8 - Prob. 48PCh. 8 - Prob. 49PCh. 8 - Prob. 50PCh. 8 - 851 to 854 For the pressure cylinder defined in...Ch. 8 - Prob. 52PCh. 8 - 851 to 854 For the pressure cylinder defined in...Ch. 8 - 851 to 854 For the pressure cylinder defined in...Ch. 8 - 855 to 858 For the pressure cylinder defined in...Ch. 8 - 855 to 858 For the pressure cylinder defined in...Ch. 8 - 855 to 858 For the pressure cylinder defined in...Ch. 8 - For the pressure cylinder defined in the problem...Ch. 8 - A 1-in-diameter hot-rolled AISI 1144 steel rod is...Ch. 8 - The section of the sealed joint shown in the...Ch. 8 - Prob. 61PCh. 8 - Prob. 62PCh. 8 - Prob. 63PCh. 8 - Prob. 64PCh. 8 - Using the Goodman fatigue criterion, repeat Prob....Ch. 8 - The figure shows a bolted lap joint that uses SAE...Ch. 8 - Prob. 67PCh. 8 - A bolted lap joint using ISO class 5.8 bolts and...Ch. 8 - Prob. 69PCh. 8 - The figure shows a connection that employs three...Ch. 8 - A beam is made up by bolting together two cold...Ch. 8 - Prob. 72PCh. 8 - Prob. 73PCh. 8 - Prob. 74PCh. 8 - A vertical channel 152 76 (see Table A7) has a...Ch. 8 - The cantilever bracket is bolted to a column with...Ch. 8 - Prob. 77PCh. 8 - The figure shows a welded fitting which has been...Ch. 8 - Prob. 79PCh. 8 - Prob. 80PCh. 8 - Prob. 81P
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