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Abstract
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Article Information:
Similar Rock Specimen’s Creep Constitutive Test and Realization by FLAC3D
Yun-Juan Chen, Wei-Shen Zhu, Shu-Cai Li, Tong-Bin Zhao, Li-Ping Li and Qian-Qing Zhang
Corresponding Author: Wei-Shen Zhu
Submitted: January 16, 2013
Accepted: February 22, 2013
Published: April 19, 2014 |
Abstract:
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In order to reveal rocks’ deformation law under long-time load, similar rock specimens’ creep constitutive was studied with a comprehensive method of theoretical analysis, test and numerical simulation. Samples’ conventional tests were done with WAW-32000 testing machine and indoor long-time creep tests were done with RLJW-2000 testing machine. Results show that, similar rock specimens’ uniaxial compressive strength is 2.65 MPa; when stress is lower than its failure threshold 4.792 KN, specimens appear only two stages of initial creep and steady-state creep; when stress is higher than the threshold, specimens appear accelerated creep stage. According to the test and equivalent coordination deformation principle, nonlinear CYJ creep constitutive is derived and nested into FLAC3D, model’s solution agrees well with the test results.
Key words: Creep test, CYJ model, nonlinear constitutive, numerical simulation, similar rock specimen, ,
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Cite this Reference:
Yun-Juan Chen, Wei-Shen Zhu, Shu-Cai Li, Tong-Bin Zhao, Li-Ping Li and Qian-Qing Zhang, . Similar Rock Specimen’s Creep Constitutive Test and Realization by FLAC3D. Research Journal of Applied Sciences, Engineering and Technology, (15): 3015-3021.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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