Mechanics of Materials
11th Edition
ISBN: 9780137605460
Author: Russell C. Hibbeler
Publisher: Pearson Education (US)
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Chapter 3.4, Problem 16P
Direct tension indicators are sometimes used instead of torque wrenches to ensure that a bolt has a prescribed tension when used for connections. If a nut on the bolt is tightened so that the six 3-mm high heads of the indicator are strained 0.1 mm/mm, and leave a contact area on each head of 1.5 mm2, determine the tension in the bolt shank. The material has the stress-strain diagram shown.
Prob. 3–16
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*8-16. Direct tension indicators are sometimes used
instead of torque wrenches to ensure that a bolt has a
prescribed tension when used for connections. If a nut on
the bolt is tightened so that the six 3-mm high heads of the
indicator are strained 0.1 mm/mm, and leave a contact area
on each head of 1.5 mm2, determine the tension in the bolt
shank. The material has the stress-strain diagram shown.
a (MPa)
3 mm
600
450
(mm/mm)
0.3
0.0015
Direct tension indicators are sometimes used instead of torque wrenches to ensure that a bolt has a prescribed tension when used for connections. If a nut on the bolt is tightened so that the six 3-mm high heads of the indicator are strained 0.1 mm>mm, and leave a contact area on each head of 1.5 mm2, determine the tension in the bolt shank. The material has the stress-straindiagram is shown.
RS-9. The 8-mm-diameter bolt is made of an aluminum
alloy. It fits through a magnesium sleeve that has an inner
diameter of 12 mm and an outer diameter of 20 mm. If the
original lengths of the bolt and sleeve are 80 mm and
50 mm, respectively, determine the strains in the sleeve and
the bolt if the nut on the bolt is tightened so that the tension
in the bolt is 8 kN. Assume the material at A is rigid.
E - 70 GPa, Emg - 45 GPa.
50 mm
-30 mm
Chapter 3 Solutions
Mechanics of Materials
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