quiz8 - must be replaced during prevented maintenance The...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Question 1 A non-critical component for a mechanical system will be subjected to a 0.01 hzcyclical stress during operation. The stress will fluctuate between a compressive load of 250 MPa and a tensile load of 250 MPa. The design calls for a confidence limit of 90% (i.e. 10% failure rate acceptable). How long can the component be used before it
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: must be replaced during prevented maintenance? The S/N curve for the material is given below: Answer Selected Answer: ~ 5 x 10 Correct Answer: ~ 5 x 10 Response Feedback: Incorrect. Using the S/N curve, the number of cycles to failure for P=0.10 and σ a = (250-(-250))/2 = 250 MPa is approximately 5x10 logarithmic scale). To get the time:...
View Full Document

{[ snackBarMessage ]}

Page1 / 2

quiz8 - must be replaced during prevented maintenance The...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online