A 1 meter long steel rod AB of 15-mm diameter is held snugly (without any initial stresses) between rigid walls by the arrangement shown in the figure. (STEEL ROD : E = 200 GPa , α= 12 x 10-6/°C , and yield strength σY = 250 MPa.) a) If the rod undergoes a temperature drop of 24°C, and the bolt at B is tightened causing the rod to elongate by 0.0566 mm, determine the bearing stress between the washer and the wall. b) Determine the amount of temperature drop that is allowed if the factor of safety against yielding is 4.
A 1 meter long steel rod AB of 15-mm diameter is held snugly (without any initial stresses) between rigid walls by the arrangement shown in the figure. (STEEL ROD : E = 200 GPa , α= 12 x 10-6/°C , and yield strength σY = 250 MPa.) a) If the rod undergoes a temperature drop of 24°C, and the bolt at B is tightened causing the rod to elongate by 0.0566 mm, determine the bearing stress between the washer and the wall. b) Determine the amount of temperature drop that is allowed if the factor of safety against yielding is 4.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A 1 meter long steel rod AB of 15-mm diameter is held snugly (without any initial stresses) between rigid walls by the arrangement shown in the figure. (STEEL ROD : E = 200 GPa , α= 12 x 10-6/°C , and yield strength σY = 250 MPa.)
a) If the rod undergoes a temperature drop of 24°C, and the bolt at B is tightened causing the rod to elongate by 0.0566 mm, determine the bearing stress between the washer and the wall.
b) Determine the amount of temperature drop that is allowed if the factor of safety against yielding
is 4.
Transcribed Image Text:Washer,
dw = 20 mm
12-mm diameter bolt
AT
B
A
15 mm
18 mm
Clevis,
te = 10 mm
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