A study of fatigue crack closure using electric potential and compliance techniques
The objective of this study was to compare closure data obtained on the same specimen with crack tip compliance gage and electric potential techniques. Equivalent results on closure using the two techniques were obtained on 7075-T651 aluminum center cracked panels. The results also indicated that cl...
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| Veröffentlicht in: | Engineering fracture mechanics 1977, Vol.9 (3), p.675-688 |
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| container_title | Engineering fracture mechanics |
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| creator | Clarke, C.K. Cassatt, G.C. |
| description | The objective of this study was to compare closure data obtained on the same specimen with crack tip compliance gage and electric potential techniques. Equivalent results on closure using the two techniques were obtained on 7075-T651 aluminum center cracked panels. The results also indicated that closure was a function of stress ratio, specimen thickness and maximum applied stress intensity. Maximum stress intensity had a particularly strong effect on closure in the range of applied stresses used. This observed dependence of closure on specimen thickness and maximum stress intensity should account for many of the discrepancies in closure behavior found in the literature. Observations on potential system behavior during closure measurements are also reported. |
| doi_str_mv | 10.1016/0013-7944(77)90080-7 |
| format | Article |
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Equivalent results on closure using the two techniques were obtained on 7075-T651 aluminum center cracked panels. The results also indicated that closure was a function of stress ratio, specimen thickness and maximum applied stress intensity. Maximum stress intensity had a particularly strong effect on closure in the range of applied stresses used. This observed dependence of closure on specimen thickness and maximum stress intensity should account for many of the discrepancies in closure behavior found in the literature. 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Equivalent results on closure using the two techniques were obtained on 7075-T651 aluminum center cracked panels. The results also indicated that closure was a function of stress ratio, specimen thickness and maximum applied stress intensity. Maximum stress intensity had a particularly strong effect on closure in the range of applied stresses used. This observed dependence of closure on specimen thickness and maximum stress intensity should account for many of the discrepancies in closure behavior found in the literature. Observations on potential system behavior during closure measurements are also reported.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/0013-7944(77)90080-7</doi><tpages>14</tpages><oa>free_for_read</oa></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| title | A study of fatigue crack closure using electric potential and compliance techniques |
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