Question: A flat leaf spring has fluctuating stress of max = 420 MPa and min = 140 MPa applied for 5 (104) cycles. If the load

A flat leaf spring has fluctuating stress of σmax = 420 MPa and σmin = 140 MPa applied for 5 (104) cycles. If the load changes to σmax = 350 MPa and σmin = .200 MPa, how many cycles should the spring survive? The material is AISI 1040 CD and has a fully corrected endurance strength of Se = 200 MPa. Assume that f = 0.9.
(a) Use Miner’s method.
(b) Use Manson’s method.

Step by Step Solution

★★★★★

3.49 Rating (159 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

A flat leaf spring has fluctuating stress of max 420 MPa and min 140 MPa ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

M-E-F-F (29).docx

120 KBs Word File

Students Have Also Explored These Related Mechanical Engineering Questions!

A flat leaf spring has fluctuating stress of max = 360 MPa and min = 160 MPa applied for 8 (104) cycles. If the load changes to max = 320 MPa and min = 200 MPa, how many cycles should the spring...

Max Corporation has a wholly owned subsidiary, Min Ltd., which was formed several years ago. Both Max and Min are in the same business, but in different geographic areas. Mins initial capital was...

A vertical load P is applied at end B of rod BC. The constant of the spring is k, and the spring is unstretched when θ = 90o. (a) Neglecting the weight of the rod, express the angle θ...

In 1990 Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using only his teeth.(a) How much work did Arfeuille do on the object? J (b) What magnitude force did he...

A leaf spring manufacturer is manufacturing a new leaf spring for the Ford F-350 pickup truck, make the "Process Flow Diagram" based on the description of the production process shown below:...

leaf spring constant is 4.75 x 10 to the fifth, the helper spring constant is 3.40 x 10 to the fifth, and yo= 0.500 m part a) what is the compression of the leaf spring for a load of 4.90 x 10 to the...

Ford is implementing TPM (Total Productive Maintenance), for which want to use historical KPIs to improve the processes of the new leaf spring for F-350 truck. Its historical data is: 8 hour shifts,...

kindly answer it in detail plzzz QUESTION 2 PART-1 A truck manufacturing company wants to design a new material for the springs used in the heavy loaded trucks (Figure Q-2). In vehicle suspension...

Truck suspensions often have helper springs that engage at high loads. One such arrangement is a leaf spring with a helper coil spring mounted on the axle, as in Figure P7.17. The helper spring...

u' webasslgnmet .-; " that engage at high loads. One such arrangement is a leaf spring with a helper Truck suspensions often have "helper springs leaf spring is compressed by distance ya, the coil...

Solve the following points based on the information provided. Obtain the income statement for the year 2020. Obtain the statement of changes in stockholders' equity for the year 2020. Obtain the...

On 1 January 2015, Telupid Bhd acquired a fabric design from a well-known fashion designer at RM2,000,000. The company had conducted a thorough product life-cycle analysis, and the results indicated...

Q 1 . [ 2 0 Marks ] ( a ) [ 4 Marks ] Using ( I a ) ? b a r ( n ) | = a ? b a r ( n ) | - n v n i , show that ( D a ) ? b a r ( n ) | = n - a ? b a r ( n ) i ( b ) [ 1 6 Marks ] A loan i s t o b e...

The Katash Company is a leader in the poultry market. It produces, sells and markets fresh and ice packed commodity chicken and frozen products known for their value and healthful qualities. Katash's...

On 1 January 20X4, Dart Incorporated commenced business operations. The following information is available to you: 20X6 $45, 000 20X4 20X5 20X7 $ (300, 000) Earnings (loss) before tax Tax rate...

As the Budgeting Officer for Best Fit Ltd, you are required to calculate the budget variances for the financial year FY 202X. The data for the Performance Report is below: Items Sales Cost of sales...

XYZ Company invested $300 Million in cash equity investment and purchase an office building worth $200 million and office equipment worth $10 million. Middle of the year the company purchased car...

Dr. Cahill has been buying rugs for a home she bought last year. Today she received an email generated by CRM software that nudged her to buy yet another, in a style that happens to be consistent...

7.84 A capacitor with a value of 10 mF has a leakage resistance of 2 M. How long does it take the voltage across the capacitor to decay to 40% of the initial voltage to which the capacitor is...

- Describe at least three ways a for-profit healthcare firm can increase equity . Include brief examples of each. Use the following information to answer questions 3, 4, and 5: 2- You have been asked...

Balance sheet preparation Use the appropriate items from the following list to prepare in good form Mellarks Baked Goods balance sheet at December 31, 2015. Value ($000) at Value ($000) at Item...

b b. calculate the NPV and decide if the system is worth noting the date of retum month Indicated by a minus sign. Do not round Intermediate calculations. Round your new 2 Net procent value Worth...