Mechanics of Materials
11th Edition
ISBN: 9780137605514
Author: Russell C. Hibbeler
Publisher: Pearson Education (US)
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Chapter 1.7, Problem 83P
To determine
The size of square bearing plates
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Q6/ If the allowable bearing stress for the material under the supports at A and B is
Op altow = 2MP , determine the size of square bearing plates A' and B' required
to support the load. Dimension the plates to the nearest mm. The reactions at the
supports are vertical. Take P = 90 kÑ.
40 kN/m
B.
-1.5 m
3 m
1.5 m-
2. The bar AC is supported by a pin at A and a cable that runs from B to E around the frictionless pully at D. If the
allowable tensile stress oallow = 5.2 ksi for the cable, determine the required minimum diameter (inch) of the cable. The
cylinder (connected at C) weighs 890 lb. Neglect weight and thickness of the bar AC.
D
4
3
A
C
5 ft
5 ft
-4 ft
890
lb
The rigid bar AB and CD are supported by pins at A and D. the vertical rods are made of aluminum and bronze. Determine the vertical displacement of the point where the force P= 10 kips is applied. Neglect the weight of the members.
Chapter 1 Solutions
Mechanics of Materials
Ch. 1.2 - Determine the resultant internal normal force,...Ch. 1.2 - Determine the resultant internal normal force,...Ch. 1.2 - Determine the resultant internal normal force,...Ch. 1.2 - Determine the resultant internal normal force,...Ch. 1.2 - Determine the resultant internal normal force,...Ch. 1.2 - Determine the resultant internal normal force,...Ch. 1.2 - The shaft is supported by a smooth thrust bearing...Ch. 1.2 - Determine the resultant internal normal and shear...Ch. 1.2 - Determine the resultant internal torque acting on...Ch. 1.2 - Determine the resultant internal loadings in the...
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- Q6/ If the allowable bearing stress for the material under the supports at A and B is Opallow = 2MPA, determine the size of square bearing plates A' and B' required to support the load. Dimension the plates to the nearest mm. The reactions at the supports are vertical. Take P = 90 kN. 40 KN /m 15m 3marrow_forwardThe 20 mm diameter steel shaft AB is attached into the rigid wall at B and supported by a smooth bearing at A. The lever AC is welded to the end of the shaft. If the downward force P will produce a 50 mm vertical displacement at the free end of lever AC, determine the force P if G = 83 GPa.arrow_forwardThe vertical shaft with a diameter of d = 20 mm is supported by a thrust collar that rests on a 21-mm-thick plate. The thrust collar is 16-mm thick. Assume that the load P causes a compressive stress of 190 MPa in the shaft. If the bearing stress between the thrust collar and the plate is limited to 35 MPa, determine the minimum outer diameter Dcollar that must be used for the thrust collar. Thrust collar area Plate Thrust collar d Dcollararrow_forward
- Q3/ If the allowable bearing stress for the material under the supports at 4 and B is dbaltow = 2MPA , determine the size of square bearing plates A' and B'required to support the load. Dimension the plates to the nearest mm. The reactions at the supports are vertical. Take P = 150 kN. 40 KN /m 15m- 3marrow_forward1-105. The compound wooden beam is connected together by a bolt at B. Assuming that the connections at A, B, C, and D exert only vertical forces on the beam, determine the required diameter of the bolt at B and the required outer diameter of its washers if the allowable tensile stress for the bolt is (o,)allow = 150 MPa and the allowable bearing stress for the wood is (o,)allow= 28 MPa. Assume that the hole in the washers has the same diameter as the bolt. 2 kN 3 kN 1.5 kN -2 m -2 m +1.5 m--1.5 m+1.5 m--1.5 m- ID B Prob. 1-105arrow_forwardThe way to the column where the loading status is seen determine the P load required for the 5 mm horizontal displacement of the C midpoint and the maximum shear stress that this P load will generate. b=750mm a=50mm t=4mm e=48mm E(modulus of elasticity)=70GPAarrow_forward
- The compound wooden beam is connected together by a bolt at B. Assuming that the connections at A, B, C, and D exert only vertical forces on the beam, determine the required diameter of the bolt at B and the required outer diameter of its washers if the allowable tensile stress for the bolt is 1st2allow = 150 MPa and the allowable bearing stress for the wood is 1sb2allow = 28 MPa. Assume that the hole in the washers has the same diameter as the bolt.arrow_forwardB8arrow_forwardAnswer the following. If the allowable bearing stress for the material under the supports at A and B is σb = 820 psi, determine the maximum load Pmax that can be applied to the beam. The bearing plates each have square cross sections of 5 in. by 5 in. The reactions at the supports are vertical. Assume w = 650 lb/ft, a = 10 ft, and b = 5 ft.arrow_forward
- Determine the magnitude of the pin force at A. Assume W = 900 Ib, a = 5.8 ft, b = 3.9 ft, r = 9 in. B W Answer: A = i Ibarrow_forwardIf the allowable bearing stress for the material under the supports at A and B is σb = 610 psi, determine the maximum load Pmax that can be applied to the beam. The bearing plates each have square cross sections of 4 in. by 4 in. The reactions at the supports are vertical. Assume w = 650 lb/ft, a = 10 ft, and b = 5 ft.arrow_forward3. The rigid bars AB and CD are supported by pins at A and D. The vertical rods are made of aluminum and bronze. Determine the vertical displacement of the point where the force P = 10 kips is applied. Neglect the weights of the members. Aluminum L= 4 f A=0.75 in. E= 10x 10 psi B 4 ft Bronze L= 5 A A=0.25 in.? E= 12x 10 psi 2 ft--2 ft-→arrow_forward
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