A LOW-LOAD-TRUNCATION METHOD FOR FATIGUE CRACK GROWTH TESTS
Based on the dependence of fatigue crack growth（ FCG） threshold on stress ratio,a low-load-truncation method for FCG tests is proposed. The effects of FCG property,stress amplitude and stress ratio are considered by this method. FCG tests using middle tension（ M（ T）） specimens under a flight-by-flig...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2016-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2016.06.014 |
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| author | ZHANG HaiYing DONG DengKe CHEN Li ZANG WeiFeng YAN WenWei |
| author_facet | ZHANG HaiYing DONG DengKe CHEN Li ZANG WeiFeng YAN WenWei |
| author_sort | ZHANG HaiYing |
| collection | DOAJ |
| description | Based on the dependence of fatigue crack growth（ FCG） threshold on stress ratio,a low-load-truncation method for FCG tests is proposed. The effects of FCG property,stress amplitude and stress ratio are considered by this method. FCG tests using middle tension（ M（ T）） specimens under a flight-by-flight spectrum and two truncated spectra were conducted. The difference between FCG lives under truncated spectra and those under baseline spectrum is less than 26%,but the test duration were shorten by 78% maximum. The test results indicate that the proposed low-load-truncation method can shorten FCG test period effectively without changing the failure mode or changing the FCG life irrationally. |
| format | Article |
| id | doaj-art-27d6d66d1b4c4ae5acfbd786be65e4a7 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2016-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-27d6d66d1b4c4ae5acfbd786be65e4a72025-01-15T02:35:21ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692016-01-01381216121930596951A LOW-LOAD-TRUNCATION METHOD FOR FATIGUE CRACK GROWTH TESTSZHANG HaiYingDONG DengKeCHEN LiZANG WeiFengYAN WenWeiBased on the dependence of fatigue crack growth（ FCG） threshold on stress ratio,a low-load-truncation method for FCG tests is proposed. The effects of FCG property,stress amplitude and stress ratio are considered by this method. FCG tests using middle tension（ M（ T）） specimens under a flight-by-flight spectrum and two truncated spectra were conducted. The difference between FCG lives under truncated spectra and those under baseline spectrum is less than 26%,but the test duration were shorten by 78% maximum. The test results indicate that the proposed low-load-truncation method can shorten FCG test period effectively without changing the failure mode or changing the FCG life irrationally.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2016.06.014Crack growthLoad spectrumLow-load-truncationThresholdM（T） specimen |
| spellingShingle | ZHANG HaiYing DONG DengKe CHEN Li ZANG WeiFeng YAN WenWei A LOW-LOAD-TRUNCATION METHOD FOR FATIGUE CRACK GROWTH TESTS Jixie qiangdu Crack growth Load spectrum Low-load-truncation Threshold M（T） specimen |
| title | A LOW-LOAD-TRUNCATION METHOD FOR FATIGUE CRACK GROWTH TESTS |
| title_full | A LOW-LOAD-TRUNCATION METHOD FOR FATIGUE CRACK GROWTH TESTS |
| title_fullStr | A LOW-LOAD-TRUNCATION METHOD FOR FATIGUE CRACK GROWTH TESTS |
| title_full_unstemmed | A LOW-LOAD-TRUNCATION METHOD FOR FATIGUE CRACK GROWTH TESTS |
| title_short | A LOW-LOAD-TRUNCATION METHOD FOR FATIGUE CRACK GROWTH TESTS |
| title_sort | low load truncation method for fatigue crack growth tests |
| topic | Crack growth Load spectrum Low-load-truncation Threshold M（T） specimen |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2016.06.014 |
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