A Time-Discontinuous Galerkin Finite Element Method for the Solution of Impact Problem of Gas-Saturated Coal
Joint Authors
Wu, Wenhua
Guo, Deyong
Zhang, Jingfei
Guo, Pan
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-08-29
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Based on the general Biot theory of saturated porous media, a modified time-discontinuous Galerkin finite element method (MDGFEM) is presented to simulate the structural dynamics and wave propagation problems of gas-saturated coal subjected to impact loading.
Numerical results of one dimension and two dimensions show that the present MDGFEM possesses better abilities and provides much more accurate solutions than the traditional Newmark method and previous DGFEM for the impact problem.
It can effectively capture the discontinuities of the wave and filter out the effects of spurious numerical oscillation induced by high-frequency impulsive load.
The results can provide a technological basis for the research of the prevention of coal and gas dynamic disasters under deep mining.
And the method could be useful for the further numerical research of coal-rock-gas coupling problems and coal-gas-heat coupling problems subjected to impact loading.
American Psychological Association (APA)
Zhang, Jingfei& Guo, Deyong& Wu, Wenhua& Guo, Pan. 2020. A Time-Discontinuous Galerkin Finite Element Method for the Solution of Impact Problem of Gas-Saturated Coal. Shock and Vibration،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1212878
Modern Language Association (MLA)
Zhang, Jingfei…[et al.]. A Time-Discontinuous Galerkin Finite Element Method for the Solution of Impact Problem of Gas-Saturated Coal. Shock and Vibration No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1212878
American Medical Association (AMA)
Zhang, Jingfei& Guo, Deyong& Wu, Wenhua& Guo, Pan. A Time-Discontinuous Galerkin Finite Element Method for the Solution of Impact Problem of Gas-Saturated Coal. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1212878
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1212878