A 1 meter long steel rod AB of 15-mm diameter is held snugly (without any initial stresses) betweenQ2rigid walls by the arrangement shown in the Figure Q3. (For the steel rod, use E 200 GPa. a 12 x10-6/°C , and oy= 250 MPa.)If the rod undergoes a temperature drop of 24°C, and the bolt at B is tightened causing the rodto elongate by 0.0566 mm, determinei.а)the average normal stress in the steel rod.ii.the average shear stress in the bolt.iii. the bearing stress between the bolt and the clevis.iv. 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 yieldingis 4.Washer,dw = 20 mm12-mm diameter boltΔΤB15 mm18 mmClevis,= 10 mm

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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 Q3. (For the steel rod, use E = 200 GPa. a = 12 x 106/°C, and oy= 250 MPa.) 2 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 i. a) the average normal stress in the steel rod. ii. the average shear stress in the bolt. iii. the bearing stress between the bolt and the clevis. iv. 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. Washer, dy = 20 mm 12-mm diameter bolt ΔΤ B 15 mm 18 mm Clevis, = 10 mm

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 Q3. (For the steel rod, use E = 200 GPa. a = 12 x 106/°C, and oy= 250 MPa.) 2 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 i. a) the average normal stress in the steel rod. ii. the average shear stress in the bolt. iii. the bearing stress between the bolt and the clevis. iv. 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. Washer, dy = 20 mm 12-mm diameter bolt ΔΤ B 15 mm 18 mm Clevis, = 10 mm

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Dependence on mechanical properties

The mechanical properties of materials are those structures that include the reaction to the load used. Metal switching features determine the scope of the usefulness of the content and establish the expected service life. Machine structures are also used to help distinguish and identify material objects. The most common mechanical properties considered are strength, ductility, stiffness, impact resistance, and resilience to fractures.

Question

A 1 meter long steel rod AB of 15-mm diameter is held snugly (without any initial stresses) between
Q2
rigid walls by the arrangement shown in the Figure Q3. (For the steel rod, use E 200 GPa. a 12 x
10-6/°C , and oy= 250 MPa.)
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
i.
а)
the average normal stress in the steel rod.
ii.
the average shear stress in the bolt.
iii. the bearing stress between the bolt and the clevis.
iv. 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.
Washer,
dw = 20 mm
12-mm diameter bolt
ΔΤ
B
15 mm
18 mm
Clevis,
= 10 mm

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