Engineering Fundamentals
6th Edition
ISBN: 9780357112144
Author: Saeed Moaveni
Publisher: MISC PUBS
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Chapter 7, Problem 48P
To determine
Find the factor at which the resistance increases if
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A beam of a T cross section is formed by nailing together two boards having the dimensions shown in the figure. If the total shear force V acting on the cross section is 1500 N and each nail may carry 760 N in shear, what is the maximum allowable nail spacing s?
A wooden buoy (s.g. = 0.62) is 70 mm by 70 mm by 5 m long is made to float in sea water (s.g. = 1.025). How many N of steel (s.g. = 7.85) should be attached to the bottom to make the buoy float with exactly 650 mm exposed above the water surface?
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Problem 1: The rigid bar AB is
attached to two vertical rods as
shown. If P=50KN, determine the
vertical movement of points A and B.
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Figure for Problem 1
ALUMINUM
L=4M
A=50OMM?
E=1OGPA
STEEL
L=3M
A=30OMM?
E=20OGPA
A
2M
3M
B
-.
Chapter 7 Solutions
Engineering Fundamentals
Ch. 7.2 - Prob. 1BYGCh. 7.2 - Prob. 2BYGCh. 7.2 - Prob. 3BYGCh. 7.2 - Prob. 4BYGCh. 7.2 - Prob. 5BYGCh. 7.2 - What does strain represent?Ch. 7.2 - Prob. BYGVCh. 7.5 - Prob. 1BYGCh. 7.5 - Describe two different methods that you can use to...Ch. 7.5 - Prob. 3BYG
Ch. 7.5 - Prob. 4BYGCh. 7.5 - Prob. 5BYGCh. 7.5 - Prob. BYGVCh. 7 - Prob. 1PCh. 7 - Prob. 2PCh. 7 - Prob. 3PCh. 7 - Prob. 4PCh. 7 - Prob. 5PCh. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 10PCh. 7 - Investigate the diameter of the electrical wire...Ch. 7 - Prob. 12PCh. 7 - Prob. 13PCh. 7 - Prob. 15PCh. 7 - Prob. 17PCh. 7 - Using area as your variable, suggest ways to cool...Ch. 7 - Prob. 19PCh. 7 - Prob. 20PCh. 7 - Prob. 21PCh. 7 - Prob. 22PCh. 7 - Prob. 23PCh. 7 - Prob. 24PCh. 7 - Prob. 25PCh. 7 - Prob. 26PCh. 7 - Prob. 27PCh. 7 - Prob. 28PCh. 7 - Prob. 30PCh. 7 - Prob. 31PCh. 7 - Prob. 32PCh. 7 - Prob. 33PCh. 7 - Prob. 34PCh. 7 - Prob. 35PCh. 7 - Prob. 36PCh. 7 - Prob. 37PCh. 7 - Prob. 38PCh. 7 - Prob. 39PCh. 7 - Prob. 40PCh. 7 - Prob. 41PCh. 7 - Prob. 42PCh. 7 - A 10 cm long rectangular bar (when subjected to a...Ch. 7 - Prob. 44PCh. 7 - Prob. 45PCh. 7 - Prob. 46PCh. 7 - Prob. 47PCh. 7 - Prob. 48PCh. 7 - Prob. 49PCh. 7 - Prob. 50P
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- Question 1 A specimen of ductile cast iron having a rectangular cross section of dimensions 4.8 mm x 15.9 mm is deformed in tension. Using the load-elongation data shown in the following table, complete parts (a) through (f) Force (N) Length (mm) 75.000 4,740 75.025 9,140 75.050 12,920 75.075 16,540 75.113 18,300 75.150 20,170 75.225 22,900 75.375 75.525 25,070 26,800 28,640 75.750 76.500 30,240 31,100 78.000 79.500 31,280 81.000 30,820 29,180 27,190 82.500 84.000 85.500 24,140 87.000 18,970 88.725 Fracture a) Plot the data as engineering stress versus engineering strain. b) Compute the modulus of elasticity. c) Determine the yield strength at a strain offset of 0.002. d) Determine the tensile strength of this alloy. e) Compute the modulus of resilience. f) What is the ductility, in percent elongation? ANarkarrow_forwardBy what factor do you increase the resistance to bending (about y–y axis) if you were to use W460 × 113 beam over W200 × 46.1 ?arrow_forwardWhat is the safe weight per linear meter lenght of the beams if displacement at E is limited at 8mm. Given is in the image.arrow_forward
- A wooden buoy (s.g. = 0.62) is 70mm by 70mm by 26.5m long is made to float in sea water (s.g. = 1.025). How many N of steel (s.g. = 7.85) should be attached to the bottom to make the buoy float with exactly 3710mm exposed above the water surface? Please explain your step by step answerarrow_forwardIn the picture, if diagonal member becomes 15 ft length, and horizontal member as it is, to find out what angle is between two members, what is length between point A and B and what is force in those two menbers A 6 10 B 1001 lb 8 ftarrow_forwardHow much deformation does a mass of 1 kg falling from a height of 6 meters cause to the built-in beam with a length of 1.5 meters and a cross-sectional area of 40x60mm2?arrow_forward
- Please write the solution on paper.arrow_forwardBy what factor do you increase the resistance to bending (about x–x axis) if you were to use W460 × 113 beam over W200 × 46.1 ?arrow_forward5. A steel bar 50mmx50mm in cross-section is 1.2 m long. It is subjected to an axial pull of 200 KN. What are the changes in length, width and volume of the bar, if the value of Poisson s ratio is 0.3 ? Take E as 200 GPa. Answer :Al-0.48mm, Ab-0.006mm and AV-480 mm'.arrow_forward
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