Paper Graphic for Goodman A steel tensile link, with a machined finish, and considered a precision member,
Fantastic news! We've Found the answer you've been seeking!
Question:
Paper Graphic for Goodman
Transcribed Image Text:
A steel tensile link, with a machined finish, and considered a "precision member", has the following properties: S, = 140 ksi, and S, = 110 ksi. The axial load "T" fluctuates between 1,000 lb and 7,000 lb, at a temperature of 805° F. A safety factor (S.F.) of 3 is specified. A. Roughly sketch a graph of load vs time, with time on the horizontal axis. Assume that the load varies from 1,000 lb to 7,000 Ib as a sine wave. Calculate the mean load and the alternating load from the max and min load values. Show the mean load on the sketch with a dashed line on the graph. Indicate with an arrow the alternating stress on the graph. B. Calculate the peak alternating stress S, at 10° cycles and the endurance limit S, at 10° cycles. Assume a reliability of 95%. C. Roughly sketch the S-N fatigue diagram as it would appear in log-log paper. Specify the peak alternating stress S, at 10° cycles and the endurance limit S, at 10° cycles. Extend the diagram to at least 10' cycles in your sketch. Clearly specify the title of both the horizontal and vertical axes. Indicate the values used in both axes. D. Determine the fatigue stress concentration factor K, for this case. To find K,, assume D/d = 1.05, and r/d = 0.10. Assume a notch radius r = 0.02 in to find the notch sensitivity factor, q. %3D E. Calculate the alternating stress og and the mean stresses om- For a uniaxial load, by definition: o = Then, establish the ratio of m = which will give you the slope of the "load line" that you Om will plot in the Goodman diagram (in part F). F. Draw the Goodman diagram in graph paper. Use a ruler or straight edge. Clearly specify the title of both the horizontal and vertical axes. Indicate the axis values on both axes. Then, plot the "load line" with the slope calculated in the previous step (E). Read the design value for Sat and write it on the graph. G. Calculate the required diameter "d" of the round link for infinite fatigue life using the value for Sat 1 that you read from the Goodman diagram. The failure theory is (6.)alt = Salt Er where o, is the "equivalent" Von Mises alternating stress (maximum distortion energy theory). Remember that the area of a circle is A A steel tensile link, with a machined finish, and considered a "precision member", has the following properties: S, = 140 ksi, and S, = 110 ksi. The axial load "T" fluctuates between 1,000 lb and 7,000 lb, at a temperature of 805° F. A safety factor (S.F.) of 3 is specified. A. Roughly sketch a graph of load vs time, with time on the horizontal axis. Assume that the load varies from 1,000 lb to 7,000 Ib as a sine wave. Calculate the mean load and the alternating load from the max and min load values. Show the mean load on the sketch with a dashed line on the graph. Indicate with an arrow the alternating stress on the graph. B. Calculate the peak alternating stress S, at 10° cycles and the endurance limit S, at 10° cycles. Assume a reliability of 95%. C. Roughly sketch the S-N fatigue diagram as it would appear in log-log paper. Specify the peak alternating stress S, at 10° cycles and the endurance limit S, at 10° cycles. Extend the diagram to at least 10' cycles in your sketch. Clearly specify the title of both the horizontal and vertical axes. Indicate the values used in both axes. D. Determine the fatigue stress concentration factor K, for this case. To find K,, assume D/d = 1.05, and r/d = 0.10. Assume a notch radius r = 0.02 in to find the notch sensitivity factor, q. %3D E. Calculate the alternating stress og and the mean stresses om- For a uniaxial load, by definition: o = Then, establish the ratio of m = which will give you the slope of the "load line" that you Om will plot in the Goodman diagram (in part F). F. Draw the Goodman diagram in graph paper. Use a ruler or straight edge. Clearly specify the title of both the horizontal and vertical axes. Indicate the axis values on both axes. Then, plot the "load line" with the slope calculated in the previous step (E). Read the design value for Sat and write it on the graph. G. Calculate the required diameter "d" of the round link for infinite fatigue life using the value for Sat 1 that you read from the Goodman diagram. The failure theory is (6.)alt = Salt Er where o, is the "equivalent" Von Mises alternating stress (maximum distortion energy theory). Remember that the area of a circle is A
Expert Answer:
Related Book For
Applied Regression Analysis and Other Multivariable Methods
ISBN: 978-1285051086
5th edition
Authors: David G. Kleinbaum, Lawrence L. Kupper, Azhar Nizam, Eli S. Rosenberg
Posted Date:
Students also viewed these mechanical engineering questions
-
Graphic Design Inc. purchased a state-of-the-art laser engraving machine for $94,500. Parker determined that the system had an expected life of 10 years (or 2,000,000 items engraved) and an expected...
-
For many years, Sinclair Graphic Design has provided design and digital-printing services for indoor banners. The nylon banners, which come in a standard size, are used for a variety of purposes,...
-
Using the big M method to solve Problem Maximize subject to P=2x1+ 4x2 + x3 2x1 + 3x1 + 5x3 280 2x1 + 2x2 + x3 140 2x1 + x2 150 x1,x2,x3 0
-
Clark had brain surgery. Insurance will not pay for the surgery until the deductible of $1,000 is hit. Then Clark's coinsurance of 80% / 20% kicks in. Clark has an out-of-pocket maximum of $7,500....
-
A 0.400-g sample of propionic acid was dissolved in water to give 50.0 mL of solution. This solution was titrated with 0.150 M NaOH. What was the pH of the solution when the equivalence point was...
-
Is an oscillating object in translational equilibrium?
-
The maximum and minimum temperature occurring in a closed cycle gas turbine plant are \(927^{\circ} \mathrm{C}\) and \(37^{\circ} \mathrm{C}\). The pressure at the outlet and the inlet of the...
-
Cummings Inc. had the following reconciliation at December 31, 2017: Fair value of plan assets.......................$5,000 PBO...............................................4,200 Funded...
-
To improve the short-range acceleration of an electric car, a capacitor may be used. Charge is stored on the capacitor's surface between a porous composite electrode and electrolytic fluid. Such a...
-
Due to unusual weather conditions in Minneapolis and Buffalo, Sandy-Built has changed the forecasted demand numbers for MeltoMatic snowblowers at its two distribution centers. Using Figures 12.24 and...
-
Sally Lee works for a tugboat company and is paid weekly. She earns $900 a week for a 40- hour week and time and a half for anything over 40 hours per week. During that last week of January 2021,...
-
What is the role of formative research in communication planning?
-
Why is it necessary for strategic communication practitioners to prepare a situation analysis before they decide the other elements of a communication plan?
-
What principles determine the role of messages in a communication strategy?
-
Why is it important to specifically segment target publics?
-
Use the specialist searches available through your college library or information service to find two recent articles or research papers covering kaizen costing. From the papers write down one...
-
One of the most important applications of ratio analysis is to compare a company's performance with that of other players in the industry or to compare its own performance over a period of time. Such...
-
Write out the formula for the total costs of carrying and ordering inventory, and then use the formula to derive the EOQ model. Andria Mullins, financial manager of Webster Electronics, has been...
-
Suppose that the following data were obtained by an investigator studying the influence of estrogen injections on change in the pulse rate of adolescent chimpanzees: a. What are the factors in this...
-
Using the data given in Problem 2 in Chapter 5 (with SBP as the dependent variable) and the accompanying computer output, find the best regression model, using α = .05 and the...
-
For the nonmelanoma skin cancer data considered in this chapter, consider the following additional model that was fit to these data: Model 5: In ij = a + 0 In Ti + E + E(In Ti) where Ti{is defined as...
-
1. Describe the bases of power held by Dr. Jamie Thompson. Describe the bases of power held by Dr. Elizabeth Clarke. 2. What activities and people have contributed to Jaime Thompsons power? What...
-
What is the current in the wire in Figure Q22.1? 1.0 VR + 1.0-1.0V + FIGURE Q22.1
-
Electroplating uses electrolysis to coat one metal with another. In a copper-plating bath, copper ions with a charge of +2e move through the electrolyte from the copper anode to the cathode the metal...
Study smarter with the SolutionInn App