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Crack growth induced by sonic IR inspection
| Content Provider | Scilit |
|---|---|
| Author | Chen, John C. Kephart, Jacob Lick, Kyle Riddell, William T. |
| Copyright Year | 2007 |
| Description | Journal: Nondestructive Testing and Evaluation We have developed an experiment to study the propagation of laboratory-synthesized fatigue cracks under various controlled conditions during Sonic IR inspection. The experiment provides for good repeatability in testing. The parameters of interest include the initial crack length, load history (stress intensity and load ratio) during crack generation, geometry of the crack, material and also the various conditions involving the ultrasonic excitation source. In general, we find that under typical sonic IR inspection conditions, the initial crack will propagate under sonic IR testing. The crack growth after each inspection event varies and exhibits a distribution in length of propagation. The results show that the average crack propagation decreases with increasing stress intensity factor, and we test two hypotheses about the cause of this. Furthermore, we find that crack propagation is affected by the initial crack length. |
| Related Links | http://digitalcommons.calpoly.edu/cgi/viewcontent.cgi?article%3D1040%26context%3Dmeng_fac |
| Ending Page | 92 |
| Page Count | 10 |
| Starting Page | 83 |
| ISSN | 10589759 |
| e-ISSN | 14772671 |
| DOI | 10.1080/10589750701447672 |
| Journal | Nondestructive Testing and Evaluation |
| Issue Number | 2 |
| Volume Number | 22 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2007-06-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Nondestructive Testing and Evaluation Characterization and Testing of Materials Crack Propagation Thermal Acoustic |
| Content Type | Text |
| Subject | Physics and Astronomy Mechanics of Materials Materials Science Mechanical Engineering |
