Numerical modeling of concrete hydraulic fracturing with extended finite element method |
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| Authors: | QingWen Ren YuWen Dong TianTang Yu |
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| Affiliation: | (1) Department of Engineering Mechanics, Hohai University, Nanjing, 210098, China;(2) College of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing, 400074, China |
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| Abstract: | The extended finite element method (XFEM) is a new numerical method for modeling discontinuity. Research about numerical modeling
for concrete hydraulic fracturing by XFEM is explored. By building the virtual work principle of the fracture problem considering
water pressure on the crack surface, the governing equations of XFEM for hydraulic fracture modeling are derived. Implementation
of the XFEM for hydraulic fracturing is presented. Finally, the method is verified by two examples and the advantages of the
XFEM for hydraulic fracturing analysis are displayed.
Supported by the National Natural Science Foundation of China (Grant Nos. 50539030, 50609004) and the National Basic Research
Program of China (“973” Program) (Grant No. 2007CB714104) |
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| Keywords: | extended finite element method (XFEM) hydraulic fracture concrete numerical modeling |
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