Compression-compression fatigue life prediction model of T300/69 laminates under edge impact
After low-velocity impact at the edge, delamination and matrix extrusion occur inside the composite laminates, which will have a serious impact on the safe use and life of the composite laminates. Therefore, it is of practical engineering significance to establish a fatigue life prediction model for...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2025-07-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2025.07.011 |
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| _version_ | 1849319616042500096 |
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| author | ZHANG Peng LIU Jianhui WEI Yaobing |
| author_facet | ZHANG Peng LIU Jianhui WEI Yaobing |
| author_sort | ZHANG Peng |
| collection | DOAJ |
| description | After low-velocity impact at the edge, delamination and matrix extrusion occur inside the composite laminates, which will have a serious impact on the safe use and life of the composite laminates. Therefore, it is of practical engineering significance to establish a fatigue life prediction model for low-velocity impact at the edge. The dent damage size, compressive residual strength and fatigue life of the fatigue life prediction model were obtained by low-speed impact test, compression test and compression-compression fatigue test. Based on the average stress failure criterion, the impact damage area of the laminated plate was equivalent to the corresponding aperture by combining the opening equivalent method, and the equivalent damage coefficient of different impact energy was proposed. A fatigue life prediction model considering the compressive residual strength of impact damaged laminates was established, and the prediction results were compared with the test results. The results show that the fatigue life prediction accuracy of the model is high, the error is controlled within 10%, and the model has good prediction ability. |
| format | Article |
| id | doaj-art-66f7a895c3024ecb899487a2b9c4955c |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2025-07-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-66f7a895c3024ecb899487a2b9c4955c2025-08-20T03:50:22ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692025-07-01478692115606425Compression-compression fatigue life prediction model of T300/69 laminates under edge impactZHANG PengLIU JianhuiWEI YaobingAfter low-velocity impact at the edge, delamination and matrix extrusion occur inside the composite laminates, which will have a serious impact on the safe use and life of the composite laminates. Therefore, it is of practical engineering significance to establish a fatigue life prediction model for low-velocity impact at the edge. The dent damage size, compressive residual strength and fatigue life of the fatigue life prediction model were obtained by low-speed impact test, compression test and compression-compression fatigue test. Based on the average stress failure criterion, the impact damage area of the laminated plate was equivalent to the corresponding aperture by combining the opening equivalent method, and the equivalent damage coefficient of different impact energy was proposed. A fatigue life prediction model considering the compressive residual strength of impact damaged laminates was established, and the prediction results were compared with the test results. The results show that the fatigue life prediction accuracy of the model is high, the error is controlled within 10%, and the model has good prediction ability.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2025.07.011Composite laminateFatigue life prediction modelOpening equivalent methodLow-velocity edge impact |
| spellingShingle | ZHANG Peng LIU Jianhui WEI Yaobing Compression-compression fatigue life prediction model of T300/69 laminates under edge impact Jixie qiangdu Composite laminate Fatigue life prediction model Opening equivalent method Low-velocity edge impact |
| title | Compression-compression fatigue life prediction model of T300/69 laminates under edge impact |
| title_full | Compression-compression fatigue life prediction model of T300/69 laminates under edge impact |
| title_fullStr | Compression-compression fatigue life prediction model of T300/69 laminates under edge impact |
| title_full_unstemmed | Compression-compression fatigue life prediction model of T300/69 laminates under edge impact |
| title_short | Compression-compression fatigue life prediction model of T300/69 laminates under edge impact |
| title_sort | compression compression fatigue life prediction model of t300 69 laminates under edge impact |
| topic | Composite laminate Fatigue life prediction model Opening equivalent method Low-velocity edge impact |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2025.07.011 |
| work_keys_str_mv | AT zhangpeng compressioncompressionfatiguelifepredictionmodeloft30069laminatesunderedgeimpact AT liujianhui compressioncompressionfatiguelifepredictionmodeloft30069laminatesunderedgeimpact AT weiyaobing compressioncompressionfatiguelifepredictionmodeloft30069laminatesunderedgeimpact |