DeGarmo's Materials and Processes in Manufacturing
12th Edition
ISBN: 9781118987674
Author: J. T. Black, Ronald A. Kohser
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 1, Problem 4P
We can analogize your university to a manufacturing system that produces graduates. Assuming that it takes 4 years to get a college degree and that each course really adds value to the student’s knowledge base, what percentage of the 4 years is “value adding” (percentage of time in class plus two hours of preparation for each hour in class)?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
state the formulas for calculating work done by gas
Exercises
Find the solution of the following Differential Equations
1) y" + y = 3x²
3)
"+2y+3y=27x
5) y"+y=6sin(x)
7) y"+4y+4y = 18 cosh(x)
9) (4)-5y"+4y = 10 cos(x)
11) y"+y=x²+x
13) y"-2y+y=e*
15) y+2y"-y'-2y=1-4x³
2) y"+2y' + y = x²
4) "+y=-30 sin(4x)
6) y"+4y+3y=sin(x)+2 cos(x)
8) y"-2y+2y= 2e* cos(x)
10) y+y-2y=3e*
12) y"-y=e*
14) y"+y+y=x+4x³ +12x²
16) y"-2y+2y=2e* cos(x)
The state of stress at a point is σ = -4.00 kpsi, σy = 16.00 kpsi, σ = -14.00 kpsi, Try = 11.00 kpsi,
Tyz = 8.000 kpsi, and T = -14.00 kpsi.
Determine the principal stresses.
The principal normal stress σ₁ is determined to be [
The principal normal stress σ2 is determined to be [
The principal normal stress σ3 is determined to be
kpsi.
kpsi.
The principal shear stress 71/2 is determined to be [
The principal shear stress 7½ is determined to be [
The principal shear stress T₁/, is determined to be [
kpsi.
kpsi.
kpsi.
kpsi.
Chapter 1 Solutions
DeGarmo's Materials and Processes in Manufacturing
Ch. 1 - What role does manufacturing play relative to the...Ch. 1 - Arent all goods really consumer goods, depending...Ch. 1 - The Subway sandwich shop is an example of a job...Ch. 1 - How does a system differ from a process? From a...Ch. 1 - Is a cutting tool the same thing as a machine...Ch. 1 - What are the major classifications of basic...Ch. 1 - Casting is often used to produce a...Ch. 1 - In the lost�wax casting process, what happens to...Ch. 1 - In making a gold medal, what do we mean by a...Ch. 1 - How is a railroad station like a station on an...
Ch. 1 - Because no work is being done on a part when it is...Ch. 1 - What forming processes are used to make a paper...Ch. 1 - What is tooling in a manufacturing system?Ch. 1 - It is acknowledged that chipâ€�type machining is...Ch. 1 - Compare Figures 1.1 and 1.16. What are the...Ch. 1 - In a modern safety razor with three or four blades...Ch. 1 - List three purposes of packaging operations.Ch. 1 - Assembly is defined as the putting together of...Ch. 1 - What are the physical elements in a manufacturing...Ch. 1 - In the production system, who usually figures out...Ch. 1 - In Figure 1.8, what do the lines connecting the...Ch. 1 - Characterize the process of squeezing toothpaste...Ch. 1 - It has been said that low-cost products are more...Ch. 1 - Prob. 24RQCh. 1 - If the rolls for the cold-rolling mill that...Ch. 1 - Make a list of service systems, giving an example...Ch. 1 - What is the fundamental difference between a...Ch. 1 - Prob. 28RQCh. 1 - What kind of process is powder metallurgy: casting...Ch. 1 - In view of Figure 1.2, who really determines the...Ch. 1 - What costs make up manufacturing cost (sometimes...Ch. 1 - What are major phases of a product life cycle?Ch. 1 - How many different manufacturing systems might be...Ch. 1 - In general, as the annual volume for a product...Ch. 1 - The Toyota truck plant in Indiana produces 150,000...Ch. 1 - A company is considering making automobile bumpers...Ch. 1 - Many companies are critically examining the...Ch. 1 - We can analogize your university to a...Ch. 1 - What kind of manufacturing system (design) is your...Ch. 1 - What are the major process steps in the assembly...Ch. 1 - What is the relationship between Figures 1.2Â...
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
- Repeat Problem 28, except using a shaft that is rotatingand transmitting a torque of 150 N * m from the left bearing to the middle of the shaft. Also, there is a profile keyseat at the middle under the load. (I want to understand this problem)arrow_forwardProb 2. The material distorts into the dashed position shown. Determine the average normal strains &x, Ey and the shear strain Yxy at A, and the average normal strain along line BE. 50 mm B 200 mm 15 mm 30 mm D ΕΙ 50 mm x A 150 mm Farrow_forwardProb 3. The triangular plate is fixed at its base, and its apex A is given a horizontal displacement of 5 mm. Determine the shear strain, Yxy, at A. Prob 4. The triangular plate is fixed at its base, and its apex A is given a horizontal displacement of 5 mm. Determine the average normal strain & along the x axis. Prob 5. The triangular plate is fixed at its base, and its apex A is given a horizontal displacement of 5 mm. Determine the average normal strain &x along the x' axis. x' 45° 800 mm 45° 45% 800 mm 5 mmarrow_forward
- An airplane lands on the straight runaway, originally travelling at 110 ft/s when s = 0. If it is subjected to the decelerations shown, determine the time t' needed to stop the plane and construct the s -t graph for the motion. draw a graph and show all work step by steparrow_forwarddny dn-1y dn-1u dn-24 +a1 + + Any = bi +b₂- + +bnu. dtn dtn-1 dtn-1 dtn-2 a) Let be a root of the characteristic equation 1 sn+a1sn- + +an = : 0. Show that if u(t) = 0, the differential equation has the solution y(t) = e\t. b) Let к be a zero of the polynomial b(s) = b₁s-1+b2sn−2+ Show that if the input is u(t) equation that is identically zero. = .. +bn. ekt, then there is a solution to the differentialarrow_forwardB 60 ft WAB AB 30% : The crane's telescopic boom rotates with the angular velocity w = 0.06 rad/s and angular acceleration a = 0.07 rad/s². At the same instant, the boom is extending with a constant speed of 0.8 ft/s, measured relative to the boom. Determine the magnitude of the acceleration of point B at this instant.arrow_forward
- The motion of peg P is constrained by the lemniscate curved slot in OB and by the slotted arm OA. (Figure 1) If OA rotates counterclockwise with a constant angular velocity of 0 = 3 rad/s, determine the magnitude of the velocity of peg P at 0 = 30°. Express your answer to three significant figures and include the appropriate units. Determine the magnitude of the acceleration of peg P at 0 = 30°. Express your answer to three significant figures and include the appropriate units. 0 (4 cos 2 0)m² B Aarrow_forward5: The structure shown was designed to support a30-kN load. It consists of a boom AB with a 30 x 50-mmrectangular cross section and a rod BC with a 20-mm-diametercircular cross section. The boom and the rod are connected bya pin at B and are supported by pins and brackets at A and C,respectively.1. Calculate the normal stress in boom AB and rod BC,indicate if in tension or compression.2. Calculate the shear stress of pins at A, B and C.3. Calculate the bearing stresses at A in member AB,and in the bracket.arrow_forward4: The boom AC is a 4-in. square steel tube with a wallthickness of 0.25 in. The boom is supported by the 0.5-in.-diameter pinat A, and the 0.375-in.-diameter cable BC. The working stresses are 25ksi for the cable, 18 ksi for the boom, and 13.6 ksi for shear in the pin.Neglect the weight of the boom.1. Calculate the maximum value of P (kips) based on boom compression and the maximum value of P (kips) based on tension in the cable.2. Calculate the maximum value of P (kips) based on shear in pin.arrow_forward
- 3: A steel strut S serving as a brace for a boat hoist transmits a compressive force P = 54 kN to the deck of a pier as shown in Fig. STR-08. The strut has a hollow square cross section with a wall thickness t =12mm and the angle θ between the strut and the horizontal is 40°. A pin through the strut transmits the compressive force from the strut to two gusset plates G that are welded to the base plate B. Four anchor bolts fasten the base plate to the deck. The diameter of the pin is 20mm, the thickness of the gusset plates is 16mm, the thickness of the base plate is 8mm, and the diameter of the anchor bolts is 12mm. Disregard any friction between the base plate and the deck.1. Determine the shear stress in the pin, in MPa and the shear stress in the anchor bolts, in MPa.2. Determine the bearing stress in the strut holes, in MPa.arrow_forward1. In the figure, the beam, W410x67, with 9 mm web thicknesssubjects the girder, W530x109 with 12 mm web thickness to a shear load,P (kN). 2L – 90 mm × 90 mm × 6 mm with bolts frame the beam to thegirder.Given: S1 = S2 = S5 = 40 mm; S3 = 75 mm; S4 = 110 mmAllowable Stresses are as follows:Bolt shear stress, Fv = 125 MPaBolt bearing stress, Fp = 510 MPa1. Determine the allowable load, P (kN), based on the shearcapacity of the 4 – 25 mm diameter bolts (4 – d1) and calculate the allowable load, P (kN), based on bolt bearing stress on the web of the beam.2. If P = 450 kN, determine the minimum diameter (mm) of 4 – d1based on allowable bolt shear stress and bearing stress of thebeam web.arrow_forward6: The 6-kN load P is supported by two wooden members of 75 x 125-mm uniform cross section that are joined by the simple glued scarf splice shown.1. Calculate the normal stress in the glue, in MPa.2. Calculate the shear stress in the glue, in MPa.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Precision Machining Technology (MindTap Course Li...Mechanical EngineeringISBN:9781285444543Author:Peter J. Hoffman, Eric S. Hopewell, Brian JanesPublisher:Cengage Learning
Precision Machining Technology (MindTap Course Li...
Mechanical Engineering
ISBN:9781285444543
Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes
Publisher:Cengage Learning
The Robot Revolution: The New Age of Manufacturing | Moving Upstream; Author: Wall Street Journal;https://www.youtube.com/watch?v=HX6M4QunVmA;License: Standard Youtube License