Mechanics of Materials, 7th Edition
7th Edition
ISBN: 9780073398235
Author: Ferdinand P. Beer, E. Russell Johnston Jr., John T. DeWolf, David F. Mazurek
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 1.5, Problem 44P
For the joint and loading of Prob. 1.43, determine the factor of safety when L = 180 mm.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Determine (a) the critical load for the steel strut, (b) the dimension d for which the aluminum strut will have the same critical load, (c) the weight of the aluminum strut as a percent of the weight of the steel strut
For the structure shown, design the maximum permissible value of W using a factor of safety of 2, based
on the following conditions.
a. Ultimate normal stress in members CD and EF is 140 ksi.
b. Ultimate shear stress in pins B, D, F, and H is 100 ksi.
c. Ultimate bearing stress on member ACEG is 200 ksi.
d. Ultimate bearing stress on support plates at B and H is 240 ksi.
All members have dimensions of 5 x 2 in while the support plates have 1.5 in. thickness. Pins at B
and H have 1 in. diameter while pins C, E, D, and F have 3/4 in. diameter. Note that there are two identical
members CD and two identical members EF. Also, there are two support plates in B while only one plate
is used in H.
W
A
B
13 ft-
3
3
10 ft-
4 ft
-3 ft-
A bronze strip is securely fixed to a side of a steel strip of the same thickness, width and length. The steel
has a Young's modulus which is twice that of bronze. When the compound bar is loaded in tension, the force
in steel is :
F
F
Oa.
Same as that in bonze, and equal to F/2
O b.
Same as that in bronze, and equal to F
Oc.
Twice that in bronze, and equal to 2F/3
Od.
Half that in bronze, and equal to F/3
Chapter 1 Solutions
Mechanics of Materials, 7th Edition
Ch. 1.2 - Two solid cylindrical rods AB and BC are welded...Ch. 1.2 - Two solid cylindrical rods AB and BC are welded...Ch. 1.2 - Two solid cylindrical rods AB and BC are welded...Ch. 1.2 - Two solid cylindrical rods AB and BC are welded...Ch. 1.2 - A strain gage located at C on the surface of bone...Ch. 1.2 - Two brass rods AB and BC, each of uniform...Ch. 1.2 - Each of the four vertical links has an 8 36-mm...Ch. 1.2 - Link AC has a uniform rectangular cross section 18...Ch. 1.2 - Three forces, each of magnitude P = 4 kN, are...Ch. 1.2 - Link BD consists of a single bar 1 in. wide and 12...
Ch. 1.2 - For the Pratt bridge truss and loading shown,...Ch. 1.2 - The frame shown consists of four wooden members,...Ch. 1.2 - An aircraft tow bar is positioned by means of a...Ch. 1.2 - Two hydraulic cylinders are used to control the...Ch. 1.2 - Determine the diameter of the largest circular...Ch. 1.2 - Two wooden planks, each 12 in. thick and 9 in....Ch. 1.2 - When the force P reached 1600 lb, the wooden...Ch. 1.2 - A load P is applied to a steel rod supported as...Ch. 1.2 - The axial force in the column supporting the...Ch. 1.2 - Three wooden planks are fastened together by a...Ch. 1.2 - A 40-kN axial load is applied to a short wooden...Ch. 1.2 - An axial load P is supported by a short W8 40...Ch. 1.2 - Link AB, of width b = 2 in. and thickness t=14...Ch. 1.2 - Determine the largest load P that can be applied...Ch. 1.2 - Knowing that = 40 and P = 9 kN, determine (a) the...Ch. 1.2 - The hydraulic cylinder CF, which partially...Ch. 1.2 - For the assembly and loading of Prob. 1.7,...Ch. 1.2 - Two identical linkage-and-hydraulic-cylinder...Ch. 1.5 - Two wooden members of uniform rectangular cross...Ch. 1.5 - Two wooden members of uniform rectangular cross...Ch. 1.5 - The 1.4-kip load P is supported by two wooden...Ch. 1.5 - Two wooden members of uniform cross section are...Ch. 1.5 - A centric load P is applied to the granite block...Ch. 1.5 - A 240-kip load P is applied to the granite block...Ch. 1.5 - A steel pipe of 400-mm outer diameter is...Ch. 1.5 - A steel pipe of 400-mm outer diameter is...Ch. 1.5 - A steel loop ABCD of length 5 ft and of 38-in....Ch. 1.5 - Link BC is 6 mm thick, has a width w = 25 mm, and...Ch. 1.5 - Link BC is 6 mm thick and is made of a steel with...Ch. 1.5 - Members AB and BC of the truss shown are made of...Ch. 1.5 - Members AB and BC of the truss shown are made of...Ch. 1.5 - Link AB is to be made of a steel for which the...Ch. 1.5 - Two wooden members are joined by plywood splice...Ch. 1.5 - For the joint and loading of Prob. 1.43, determine...Ch. 1.5 - Three 34-in.-diameter steel bolts are to be used...Ch. 1.5 - Three steel bolts are to be used to attach the...Ch. 1.5 - A load P is supported as shown by a steel pin that...Ch. 1.5 - A load P is supported as shown by a steel pin that...Ch. 1.5 - A steel plate 14 in. thick is embedded in a...Ch. 1.5 - Determine the factor of safety for the cable...Ch. 1.5 - Link AC is made of a steel with a 65-ksi ultimate...Ch. 1.5 - Solve Prob. 1.51, assuming that the structure has...Ch. 1.5 - Each of the two vertical links CF connecting the...Ch. 1.5 - Solve Prob. 1.53, assuming that the pins at C and...Ch. 1.5 - In the structure shown, an 8-mm-diameter pin is...Ch. 1.5 - In an alternative design for the structure of...Ch. 1.5 - Prob. 57PCh. 1.5 - The Load and Resistance Factor Design method is to...Ch. 1 - In the marine crane shown, link CD is known to...Ch. 1 - Two horizontal 5-kip forces are applied to pin B...Ch. 1 - For the assembly and loading of Prob. 1.60,...Ch. 1 - Two steel plates are to be held together by means...Ch. 1 - A couple M of magnitude 1500 N m is applied to...Ch. 1 - Knowing that link DE is 18 in. thick and 1 in....Ch. 1 - A 58-in.-diameter steel rod AB is fitted to a...Ch. 1 - In the steel structure shown, a 6-mm-diameter pin...Ch. 1 - Prob. 67RPCh. 1 - A force P is applied as shown to a steel...Ch. 1 - The two portions of member AB are glued together...Ch. 1 - The two portions of member AB are glued together...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- 1.18 Determine the smallest safe cross-sectional areas of members CD, GD, and GF for the truss shown. The working stresses are 140 MPa in tension and 100 MPa in compression. (The working stress in compression is smaller to reduce the danger of buckling.) B 6 m 4 m 4m E 6 m H 6 m Ġ 6m F 6m 140 kN 140 kN A.arrow_forwardDetermine (a) the critical load for the brass stut, (b) the dimension d for which the aluminum strut will have the same critical load, (c) the weight of the aluminum strut as a percent of the weight of the brass strut.arrow_forward2 in. 40° FIG. P1.22arrow_forward
- The riveted lap connection shown consists of two(2) – PL 12 mm × 280 mm. 2. If allowable bearing stress in holes is 1.2Fu where Fu is the ultimate strength of the plate and which is equal to 400 MPa, find the maximum allowable force P that can be applied neglecting effect of eccentricity. a. 563.3 kN b. 460.8 kN c. 683. 6 kN d. 405.9 kN 3. If allowable yielding of gross area is Fy/1.67, where Fy is the yield strength of the plate and which is equal to 250 MPa, find the maximum allowable force P that can be applied neglecting effect of eccentricity. a. 534 kN b. 560 kN c. 446 kN d. 503 kN 4. If diameter of hole equals diameter of rivet, what is the net area of edge-3-4-edge in square millimeters? a. 2540 b. 2590 c. 2880 d. 2040arrow_forwardQuestion 2 The rods BE and CD are made from steel (E=200 GPa), and each have a diameter, 0. The ends of the rods are threaded with a pitch, p. The nuts at B and C are initially finger tightened such that they barely touch rigid member ABC. If the nut at C is then tightened by one full turn, determine: (a) the tension in rods BE and CD (b) the distance, uc, that point C on the rigid member ABC moves. Assume a=150 mm, b= 100 mm, c= 2 m, d= 3 m, =16 mm, and p=2.5 mm. OA a В E D C с d Drawing is not to scale.arrow_forwardQuestion 2 The rods BE and CD are made from steel (E=200 GPa), and each have a diameter, 0. The ends of the rods are threaded with a pitch, p. The nuts at B and C are initially finger tightened such that they barely touch rigid member ABC. If the nut at C is then tightened by one full turn, determine: (a) the tension in rods BE and CD (b) the distance, uc, that point C on the rigid member ABC moves. Assume a=150 mm, b= 100 mm, c= 2 m, d= 3 m, D=16 mm, and p=2.5 mm. A a В E D C d Drawing is not to scale.arrow_forward
- 1.A 3inch by 3inch square steel guardrail post was hit by a car on one of its side and applieda 1.6 kN force. The base of the post is a ¼ inch thick square steel plate and is supported by four pieces half inch diameter bolts. (1 inch = 25.4 mm) a.Assuming that the bolts received an equally distributed force, what is the shear stress applied to a single bolt? b.If the bottomplate of the post is a steel with astress capacity of 120 MPa, what is the maximum allowable bearing force on the plate? c.Assuming that the post is a solid steel and was hit by a falling solid heavy object from above, what is the maximum load that it can carry? d.If the post is a steel tube withcircular hollow section and an outerdimension of 4 inch by 4 inch, what is the maximum inner diameterif same force was applied?arrow_forwardQuestion 2 The rods BE and CD are made from steel (E=200 GPa), and each have a diameter, P. The ends of the rods are threaded with a pitch, p. The nuts at B and C are initially finger tightened such that they barely touch rigid member ABC. If the nut at C is then tightened by one full turn, determine: (a) the tension in rods BE and CD (b) the distance, uc, that point C on the rigid member ABC moves. Assume a=300 mm, b= 100 mm, c= 2.5 m, d= 6 m, 0=40 mm, and p=1 mm. OA a В E b D C darrow_forwardA set of 10 bolts is to be used to provide a clamping force of 50000 lb between two components of a machine. The load is shared equally among the 4 bolts. Knowing that the grade of the material is SAE Grade 4, if each is to be stressed to 90 %of its proof strength. Then the required tensile stress area is: Select one: A. A, = 0.0714 in В. B. A, = 0.22 in %3D 2. C. A, = 0.0865 in 2. D. A, = 0.0855 inarrow_forward
- 2.5. Loads applied only at the joints of truss-Radial load Select one: True O Falsearrow_forward8. Two blocks are arranged as shown. At that position, if vx is 1 fpm, what is Vy, in fpm? C. 2.3 d. 2.9 a. b. 1.1 1.8 9. The lap joint shown supports a weight W equal to 200 lb. The bearing stress and the shear stress should not exceed 18 ksi and 9 ksi respectively. The thickness, t is 1/8 in. Determine the smallest diameter bolt, in inches, that can be used. a. 1/8 b. 5/32 W C. 3/16 d. 7/32 BOLTarrow_forward3. JA beam is welded to a wall and subjected to a force couple (torsional moment) of 12000 in-lbs and a tensile force of 5000 lbs as shown. The cross-section is circular with an outer diameter of 4 inches. The weld is all-around. The electrode is E60 and the weld leg is 4 inch. The factor of safety guarding against static yielding is closest to: a. 1.5 b. 2.2 с. 3.9 12000 im-lb d. 4.5 e. 5.3 5000 lbs 94* Weldarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- International Edition---engineering Mechanics: St...Mechanical EngineeringISBN:9781305501607Author:Andrew Pytel And Jaan KiusalaasPublisher:CENGAGE L
International Edition---engineering Mechanics: St...
Mechanical Engineering
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:CENGAGE L
An Introduction to Stress and Strain; Author: The Efficient Engineer;https://www.youtube.com/watch?v=aQf6Q8t1FQE;License: Standard YouTube License, CC-BY