Fatigue Crack Propagation Path and Life Prediction Based on XFEM
Based on the theory of linear elastic fracture mechanics, the relationships between material constants c3, c4 required in Abaqus and constants C, m in Paris formula are derived. Then extended finite element method (XFEM) of Abaqus software is used to is used to predict the crack propagation path and...
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The Northwestern Polytechnical University
2019-08-01
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doaj-7b2ce3b9204b41df8c5961d58424f6942021-05-03T01:30:57ZzhoThe Northwestern Polytechnical UniversityXibei Gongye Daxue Xuebao1000-27582609-71252019-08-0137473774310.1051/jnwpu/20193740737jnwpu2019374p737Fatigue Crack Propagation Path and Life Prediction Based on XFEM01234Aircraft Design & Research Institute, AVIC Harbin Aircraft Industry Group Co. LTDAircraft Design & Research Institute, AVIC Harbin Aircraft Industry Group Co. LTDShenyang Entry-Exit Inspection and Quarantine Bureau Technology CenterAircraft Design & Research Institute, AVIC Harbin Aircraft Industry Group Co. LTDAircraft Design & Research Institute, AVIC Harbin Aircraft Industry Group Co. LTDBased on the theory of linear elastic fracture mechanics, the relationships between material constants c3, c4 required in Abaqus and constants C, m in Paris formula are derived. Then extended finite element method (XFEM) of Abaqus software is used to is used to predict the crack propagation path and life of the plate with center inclined through crack and typical stiffened wing spar with initial crack under the constant amplitude fatigue load. The results show that the predicted crack propagation path is in good agreement with the experimental results, and the crack propagation life error is less than 6.3%. It also shows that this method can accurately predict the fatigue crack growth path and life of two-dimensional and three-dimensional complex structures under constant amplitude loads. This study can provide an effective way for damage tolerance analysis of structures and has certain engineering application value.https://www.jnwpu.org/articles/jnwpu/full_html/2019/04/jnwpu2019374p737/jnwpu2019374p737.htmlxfemstrain energy release ratecrack propagationfatigue life predictionfracture mechanicsabaqusparis formula |
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DOAJ |
language |
zho |
format |
Article |
sources |
DOAJ |
title |
Fatigue Crack Propagation Path and Life Prediction Based on XFEM |
spellingShingle |
Fatigue Crack Propagation Path and Life Prediction Based on XFEM Xibei Gongye Daxue Xuebao xfem strain energy release rate crack propagation fatigue life prediction fracture mechanics abaqus paris formula |
title_short |
Fatigue Crack Propagation Path and Life Prediction Based on XFEM |
title_full |
Fatigue Crack Propagation Path and Life Prediction Based on XFEM |
title_fullStr |
Fatigue Crack Propagation Path and Life Prediction Based on XFEM |
title_full_unstemmed |
Fatigue Crack Propagation Path and Life Prediction Based on XFEM |
title_sort |
fatigue crack propagation path and life prediction based on xfem |
publisher |
The Northwestern Polytechnical University |
series |
Xibei Gongye Daxue Xuebao |
issn |
1000-2758 2609-7125 |
publishDate |
2019-08-01 |
description |
Based on the theory of linear elastic fracture mechanics, the relationships between material constants c3, c4 required in Abaqus and constants C, m in Paris formula are derived. Then extended finite element method (XFEM) of Abaqus software is used to is used to predict the crack propagation path and life of the plate with center inclined through crack and typical stiffened wing spar with initial crack under the constant amplitude fatigue load. The results show that the predicted crack propagation path is in good agreement with the experimental results, and the crack propagation life error is less than 6.3%. It also shows that this method can accurately predict the fatigue crack growth path and life of two-dimensional and three-dimensional complex structures under constant amplitude loads. This study can provide an effective way for damage tolerance analysis of structures and has certain engineering application value. |
topic |
xfem strain energy release rate crack propagation fatigue life prediction fracture mechanics abaqus paris formula |
url |
https://www.jnwpu.org/articles/jnwpu/full_html/2019/04/jnwpu2019374p737/jnwpu2019374p737.html |
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1721485960204517376 |