COMPLEX VARIABLE FUNCTION SOLUTIONS OF STRESS INTENSITY FACTORS FOR MULTIPLE HOLE-EDGE CRACKS
The acceleration effect in the process of collinear hole-edge cracks propagation of aircraft fuselage skin structure is mainly manifested by the interaction of stress intensity factors between multiple fatigue cracks. A modified approximate superposition method based on the Muskhelishvili complex fu...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2020-01-01
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| Series: | Jixie qiangdu |
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| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.02.027 |
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| author | ZHU QingYu JIANG JueYi |
| author_facet | ZHU QingYu JIANG JueYi |
| author_sort | ZHU QingYu |
| collection | DOAJ |
| description | The acceleration effect in the process of collinear hole-edge cracks propagation of aircraft fuselage skin structure is mainly manifested by the interaction of stress intensity factors between multiple fatigue cracks. A modified approximate superposition method based on the Muskhelishvili complex function theory and truncated conformal mapping approach is proposed in this paper to solve the stress intensity factors of multiple hole-edge cracks under remote uniform tension. The influence law of stress intensity factors for three kinds of cracking mode is analyzed,including the cracks of equal length emanating from two holes,the cracks of unequal length emanating from two holes,the cracks of equal length emanating from three holes and the cracks of unequal length emanating from three holes. The results of examples show that the interaction between adjacent cracks is obviously and the dimensionless stress intensity factors increase rapidly when the crack tips approach each other. |
| format | Article |
| id | doaj-art-da59469e0f524c378219cb9b888a6095 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2020-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-da59469e0f524c378219cb9b888a60952025-01-15T02:28:14ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692020-01-014243744230607517COMPLEX VARIABLE FUNCTION SOLUTIONS OF STRESS INTENSITY FACTORS FOR MULTIPLE HOLE-EDGE CRACKSZHU QingYuJIANG JueYiThe acceleration effect in the process of collinear hole-edge cracks propagation of aircraft fuselage skin structure is mainly manifested by the interaction of stress intensity factors between multiple fatigue cracks. A modified approximate superposition method based on the Muskhelishvili complex function theory and truncated conformal mapping approach is proposed in this paper to solve the stress intensity factors of multiple hole-edge cracks under remote uniform tension. The influence law of stress intensity factors for three kinds of cracking mode is analyzed,including the cracks of equal length emanating from two holes,the cracks of unequal length emanating from two holes,the cracks of equal length emanating from three holes and the cracks of unequal length emanating from three holes. The results of examples show that the interaction between adjacent cracks is obviously and the dimensionless stress intensity factors increase rapidly when the crack tips approach each other.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.02.027Complex variable function methodMultiple hole-edge cracksStress intensity factorCrack interactionSuperposition method |
| spellingShingle | ZHU QingYu JIANG JueYi COMPLEX VARIABLE FUNCTION SOLUTIONS OF STRESS INTENSITY FACTORS FOR MULTIPLE HOLE-EDGE CRACKS Jixie qiangdu Complex variable function method Multiple hole-edge cracks Stress intensity factor Crack interaction Superposition method |
| title | COMPLEX VARIABLE FUNCTION SOLUTIONS OF STRESS INTENSITY FACTORS FOR MULTIPLE HOLE-EDGE CRACKS |
| title_full | COMPLEX VARIABLE FUNCTION SOLUTIONS OF STRESS INTENSITY FACTORS FOR MULTIPLE HOLE-EDGE CRACKS |
| title_fullStr | COMPLEX VARIABLE FUNCTION SOLUTIONS OF STRESS INTENSITY FACTORS FOR MULTIPLE HOLE-EDGE CRACKS |
| title_full_unstemmed | COMPLEX VARIABLE FUNCTION SOLUTIONS OF STRESS INTENSITY FACTORS FOR MULTIPLE HOLE-EDGE CRACKS |
| title_short | COMPLEX VARIABLE FUNCTION SOLUTIONS OF STRESS INTENSITY FACTORS FOR MULTIPLE HOLE-EDGE CRACKS |
| title_sort | complex variable function solutions of stress intensity factors for multiple hole edge cracks |
| topic | Complex variable function method Multiple hole-edge cracks Stress intensity factor Crack interaction Superposition method |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.02.027 |
| work_keys_str_mv | AT zhuqingyu complexvariablefunctionsolutionsofstressintensityfactorsformultipleholeedgecracks AT jiangjueyi complexvariablefunctionsolutionsofstressintensityfactorsformultipleholeedgecracks |