Vui lòng dùng định danh này để trích dẫn hoặc liên kết đến tài liệu này: http://thuvienso.vanlanguni.edu.vn/handle/Vanlang_TV/18726
Nhan đề: A Coupled Damage-Permeability Constitutive Model for Brittle Rocks Subjected to Explosive Loading
Tác giả: Wang, Qizhi
Su, Xuebin
Wu, Bangbiao
Wang, Wei
Yuan, Wei
Từ khoá: Gold
Finite element method
Embedded foundations
Uranium
Permeability
Soil mechanics
Explosions
Gold ores
Three dimensional models
Uranium ores
Leaching
Blasting (explosive); Mathematical models; In situ leaching; Anisotropy; Laboratory tests; Damage; Cracks; Rocks; Computer simulation; Constitutive models"
Năm xuất bản: 2018
Nhà xuất bản: Hindawi Limited
Tóm tắt: A dynamic constitutive model considering coupled damage-permeability effect is developed for rocks under explosion. The main purpose of this model is to provide reference to in situ leaching mining (include uranium ore, gold ore, etc.) to improve the permeability of rocks using blasting. The damage is induced and described by the summation of all principal tensile strains. This method does not need to determine (distinguish) the stress state of the material and thus does not need to consider the damage induced by differential stresses. A corresponding relation between the damage status and rock permeability is established through a logarithm function. Based on the theoretical foundation, this model is embedded in a three-dimensional code of ABAQUS, and its applicability is verified through simulating the experiments under the condition of explosive load, the results from numerical simulation are consistent with the experimental results. Moreover, the obvious advantage of the numerical constitutive model is that it can clearly distinguish permeability variation that cannot be done in laboratory test.
Mô tả: "Hindawi Advances in Civil Engineering Volume 2018, Article ID 6816974, 9 pages https://doi.org/10.1155/2018/6816974"
Định danh: http://thuvienso.vanlanguni.edu.vn/handle/Vanlang_TV/18726
ISSN: 1687 - 8086
Bộ sưu tập: Bài báo_lưu trữ

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BBKH1101_TCCN_A Coupled Damage.pdf
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