Calculate the percentage change needed on the stress, Other Engineering

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Calculate the percentage change needed on the stress

Response to the following :

For a fixed, given load, the stress can be increased or decreased by changing the geometry of the system. Calculate the % change needed on the stress in Problem 1 to achieve a reliability of 99.5%.

Problem 1:

Consider a material with measured strength values F given in Table . Assume the expected stress values to be one-half of the values in Table. Calculate the safety factor and the reliability of the system.

1762_Strength data (in MPa).jpg

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Other Engineering: Calculate the percentage change needed on the stress

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