An Improved Duncan–Chang Constitutive Model for Sandstone Subjected to Drying–Wetting Cycles and Secondary Development of the Model in FLAC
Arabian Journal for Science and Engineering, ISSN: 2191-4281, Vol: 42, Issue: 3, Page: 1265-1282
2017
- 22Citations
- 7Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Article Description
Water–rock interaction refers to chemical, physical, and dynamic interactions between underground water and rock. Water–rock interactions take place everywhere from the Earth surface to great depths. Many geologic events and environmental changes are caused by the presence of water. To research the mechanical properties of sandstone subjected to drying–wetting cycles, this paper proposes an improved Duncan–Chang constitutive model capable of describing the initial compression phase and the post-peak residual phase of rock deformation. Based on compression tests, stress–strain curves of uniaxial and triaxial compression of sandstone subjected to drying–wetting cycles were obtained. Then a robust secondary development platform for the FLAC software is generated, and a Microsoft Visual C++ program is used to construct an improved Duncan–Chang constitutive model for sandstone. A dynamic link calculation program for this model is also presented. The secondary development constitutive model is used to perform simulated compression tests, and the numerical test results are very similar to data from physical uniaxial and triaxial compression tests.
Bibliographic Details
Springer Science and Business Media LLC
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