ACCURACY ANALYSIS ON THE EMPIRICAL EQUATION OF FINITE THICKNESS SEMI-ELLIPTICAL SURFACE CRACK BASED ON INTERACTION INTEGRAL METHOD
The interaction integral method（IIM） is used to calculate stress intensity factors（SIF） of finite thickness semi-elliptical surface cracks. Results are compared with that predicted by the empirical equation and equivalent domain integral（EDI） method. The comparison with EDI method verifies computati...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2018-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.06.034 |
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| _version_ | 1841535565946683392 |
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| author | HOU Shuai ZHU YouLi QIU Ji SUN XiaoFeng |
| author_facet | HOU Shuai ZHU YouLi QIU Ji SUN XiaoFeng |
| author_sort | HOU Shuai |
| collection | DOAJ |
| description | The interaction integral method（IIM） is used to calculate stress intensity factors（SIF） of finite thickness semi-elliptical surface cracks. Results are compared with that predicted by the empirical equation and equivalent domain integral（EDI） method. The comparison with EDI method verifies computational accuracy of IIM for calculating 3 D crack problem. The SIF distribution along the semi-elliptical crack of different crack shape ratio and different finite thickness ratio conditions are calculated with the IIM and empirical equation. Relative error of empirical equation is evaluated. The results show that empirical equation produces larger error when the finite thickness ratio is large. Based on the analysis, the applicable range of the empirical equation is presented. |
| format | Article |
| id | doaj-art-ab5e7acc65604ff8af2cea53dd57d3db |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2018-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-ab5e7acc65604ff8af2cea53dd57d3db2025-01-15T02:31:10ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692018-01-01401479148430603620ACCURACY ANALYSIS ON THE EMPIRICAL EQUATION OF FINITE THICKNESS SEMI-ELLIPTICAL SURFACE CRACK BASED ON INTERACTION INTEGRAL METHODHOU ShuaiZHU YouLiQIU JiSUN XiaoFengThe interaction integral method（IIM） is used to calculate stress intensity factors（SIF） of finite thickness semi-elliptical surface cracks. Results are compared with that predicted by the empirical equation and equivalent domain integral（EDI） method. The comparison with EDI method verifies computational accuracy of IIM for calculating 3 D crack problem. The SIF distribution along the semi-elliptical crack of different crack shape ratio and different finite thickness ratio conditions are calculated with the IIM and empirical equation. Relative error of empirical equation is evaluated. The results show that empirical equation produces larger error when the finite thickness ratio is large. Based on the analysis, the applicable range of the empirical equation is presented.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.06.034Semi-elliptical crackFinite thicknessStress intensity factors（SIF）Interaction integral method（IIM）Equivalent domain integral（EDI）Empirical equation |
| spellingShingle | HOU Shuai ZHU YouLi QIU Ji SUN XiaoFeng ACCURACY ANALYSIS ON THE EMPIRICAL EQUATION OF FINITE THICKNESS SEMI-ELLIPTICAL SURFACE CRACK BASED ON INTERACTION INTEGRAL METHOD Jixie qiangdu Semi-elliptical crack Finite thickness Stress intensity factors（SIF） Interaction integral method（IIM） Equivalent domain integral（EDI） Empirical equation |
| title | ACCURACY ANALYSIS ON THE EMPIRICAL EQUATION OF FINITE THICKNESS SEMI-ELLIPTICAL SURFACE CRACK BASED ON INTERACTION INTEGRAL METHOD |
| title_full | ACCURACY ANALYSIS ON THE EMPIRICAL EQUATION OF FINITE THICKNESS SEMI-ELLIPTICAL SURFACE CRACK BASED ON INTERACTION INTEGRAL METHOD |
| title_fullStr | ACCURACY ANALYSIS ON THE EMPIRICAL EQUATION OF FINITE THICKNESS SEMI-ELLIPTICAL SURFACE CRACK BASED ON INTERACTION INTEGRAL METHOD |
| title_full_unstemmed | ACCURACY ANALYSIS ON THE EMPIRICAL EQUATION OF FINITE THICKNESS SEMI-ELLIPTICAL SURFACE CRACK BASED ON INTERACTION INTEGRAL METHOD |
| title_short | ACCURACY ANALYSIS ON THE EMPIRICAL EQUATION OF FINITE THICKNESS SEMI-ELLIPTICAL SURFACE CRACK BASED ON INTERACTION INTEGRAL METHOD |
| title_sort | accuracy analysis on the empirical equation of finite thickness semi elliptical surface crack based on interaction integral method |
| topic | Semi-elliptical crack Finite thickness Stress intensity factors（SIF） Interaction integral method（IIM） Equivalent domain integral（EDI） Empirical equation |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.06.034 |
| work_keys_str_mv | AT houshuai accuracyanalysisontheempiricalequationoffinitethicknesssemiellipticalsurfacecrackbasedoninteractionintegralmethod AT zhuyouli accuracyanalysisontheempiricalequationoffinitethicknesssemiellipticalsurfacecrackbasedoninteractionintegralmethod AT qiuji accuracyanalysisontheempiricalequationoffinitethicknesssemiellipticalsurfacecrackbasedoninteractionintegralmethod AT sunxiaofeng accuracyanalysisontheempiricalequationoffinitethicknesssemiellipticalsurfacecrackbasedoninteractionintegralmethod |