Numerical Test Study on the Mechanical Behavior of Rock Creep Fracture

Abstract:

The mechanical behavior of rock interior creep fracture evolution and the state are difficult to observe. Combined with the laboratory rock compressive-creep test, the uniaxial creep numerical test based on FLAC3D was carried out. The different positions of the model displacement, stress, strain and damage zone were analyzed under different loading. The mechanical behavior of evolution process and characteristics of rock creep fracture were revealed under the different loading. The results show that: the data of numerical simulation and laboratory test are identical by comparing with laboratory test, and numerical test on simulated rock creep mechanical behavior evolution and methods is feasible and effective. It is a new method that can improve laboratory test of the microscopic creep, provide basis for evaluation of engineering rock mass stability too.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 526-533
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.526
• Online since: October 2012
• Authors: Hai Ping Yuan, Li Gang Zhu, You Jing Zhai, Shui Mei Chen
• Keywords: Constitutive Model, Creep Fracture, Evolution Law, FLAC-3D, Mechanical Behavior

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