CET 345W Materials Testing Laboratory: fatigue test, full lab report.

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Table of Contents 1. Summary …………………………………………….…………………………… 2 2. Procedure ……….…………………………………………………� ... ��…………… 2 3. Equipment ……………………..………………….……………………………… 2 4. Experiment Requirements ….……..………………………………………………. 2 5. Results……… ……………..…….………………….…………………………….. 3 6. Sketches/Graphs ……………..…….……………….…………………………….. 5 7. Conclusions/Analysis …………………………….………………………………. 9 a. Observe a demonstration of the Sonntag constant-force universal fatigue testing machine. b. Plot S-N curves for a notched and an un-notched specimen using data from a typical test as supplied by the instructor. c. Determine the endurance ratio for the three specimens for which data is supplied. d. Explain how a fatigue failure is induced. e. State the typical conditions which accentuate the susceptibility to failure by fatigue. f. Recall which materials have fatigue strength and which have an endurance limit. g. Write and submit a lab report. Provide a table of experimental results of each specimen tested in the Results section of the Summary for your report. [Show More]

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