Numerical Simulation Analysis of Rock Fracture Propagation Based on VUMAT
DOI:
https://doi.org/10.54097/hset.v52i.8815Keywords:
ABAQUS, D-P criterion, VUMAT subroutine, Element deletion method, Rock crack propagation.Abstract
The study of crack propagation in rock is of great significance to the stability of structural engineering. In this paper, through ABAQUS software, a simulation method of rock fracture propagation law is proposed. The D-P criterion of shear effect (Drucker Prager criterion) is embedded into the VUMAT subroutine in ABAQUS software, and the rule of rock fracture propagation is analyzed by using the element deletion method. The results show that: (1) stress concentration occurs first at the tip of the prefabricated crack, and then fracture occurs; (2) The fracture pattern is perpendicular to the crack, develops symmetrically, and produces secondary horizontal cracks; (3) The crack develops and forms an anti-wing crack, which continues to expand with the secondary horizontal crack, and finally the rock is destroyed. (4) Compared with the test results, the model can better reflect the law of rock crack propagation.
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References
S.T. Zhang. On the Development and Application of Computer Aided Engineering (CAE) [J]. Science and Technology Communication, 2010, 16:232-233.
D.S. Wang, Z.S. Li, C.M. Li, W.W. Jiang, G.J. Wang, Y. Liao. Implementation of elasto-plastic time history analysis of complex structures in ABAQUS software [J]. Architectural Structure, 2007 (05): 92-95+12.
L. Yi, Y. Peng. Secondary development of constitutive model of solid propellant materials based on VUMAT [J]. Mechanical Strength, 2013, 35 (03): 391-394.
W.L. Wang. Secondary development and application of concrete damage constitutive model based on ABAQUS [D]. North China University of Water Resources and Hydropower, 2021.
W.F. Bai, S.J. Zhang, J.F. Guan, J.Y. Chen. Research on statistical damage constitutive model of orthotropic concrete [J]. Journal of Water Resources, 2014, 45 (05): 607-618.
T. Li, S. Zhang. Development and application of a statistical constitutive model of damaged rock affected by the load-bearing capacity of damaged elements [J]. ZhejiangUniv.Sci. A16,644–655(2015).
H. Wang, H. Zhou , S. Shang. Development and Application of Rock Fracture Propagation Numerical Simulation System. Geotech Geol Eng 40, 3075–3090 (2022).
X. Wang, Y.Q. Song, N. Sha, G.L. Qiu, J. Liu. Analysis of Rock Fracture Propagation Based on ABAQUS Extended Finite Element [C]//. Proceedings of the 18th Annual Academic Conference of Beijing Mechanical Society. [Publisher unknown], 2012: 226-227.
H.F. Sun, Y.G. Yang, Y. Ju, Q.G. Zhang, R.D. Peng. Numerical analysis of deformation, failure and energy release of coal and rock under excavation unloading conditions [J]. Journal of Coal Industry, 2014,39 (02): 258-272.
W.J. Zhao. Numerical simulation system for rock mechanics test based on secondary development of ABAQUS [J]. Higher Architecture Education, 2019, 5:160-165.
H. Wang, P.Q. Zheng, Q.B. Wang. A numerical simulation method for rock mechanics test based on ABAQUS [P]. Chinese patent: CN108182335A, 2018-06-19.
C.T. Li. Experimental Study on the Difference of Fracture Propagation of Different Types of Rock [D]. Shandong University of Science and Technology, 2020.
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