Fracture Analysis of Brittle Materials Based on Nonlinear FEM and Application in Arch Dam with Fractures
Joint Authors
Liu, Yaoru
Pan, Yuanwei
Yang, Qiang
Chen, Xin
Cui, Zhixiong
Source
Journal of Applied Mathematics
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-10-28
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Current fracture analysis models based on fracture mechanics or continuum damage mechanics are still limited in the application to three-dimensional structure.
Based on deformation reinforcement theory coming from elastoperfect plastic theory, unbalanced force is proposed to predict initiation and propagation of cracks.
Unbalanced force is the driving force of time-dependent deformation according to Perzyna’s viscoplasticity theory.
It is also related to the damage driving force in viscoplastic damage model.
The distribution of unbalanced force indicates cracks initiation area, while its direction predicts possible cracks propagation path.
Uniaxial compression test of precrack specimen is performed as verification to this method.
The trend and distribution of cracks are in good agreement with numerical results, proving that unbalanced force is feasible and effective for fracture analysis.
The method is applied in fracture analysis of Xiaowan high arch dam, which is subjected to some cracks in dam due to the temperature control program.
The results show that the deformation and stress of cracks and the stress characteristics of dam are insensitive to grouting of cracks.
The existing cracks are stable and dam heel is still the most possible cracking position.
American Psychological Association (APA)
Pan, Yuanwei& Liu, Yaoru& Cui, Zhixiong& Chen, Xin& Yang, Qiang. 2013. Fracture Analysis of Brittle Materials Based on Nonlinear FEM and Application in Arch Dam with Fractures. Journal of Applied Mathematics،Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-488874
Modern Language Association (MLA)
Pan, Yuanwei…[et al.]. Fracture Analysis of Brittle Materials Based on Nonlinear FEM and Application in Arch Dam with Fractures. Journal of Applied Mathematics No. 2013 (2013), pp.1-12.
https://search.emarefa.net/detail/BIM-488874
American Medical Association (AMA)
Pan, Yuanwei& Liu, Yaoru& Cui, Zhixiong& Chen, Xin& Yang, Qiang. Fracture Analysis of Brittle Materials Based on Nonlinear FEM and Application in Arch Dam with Fractures. Journal of Applied Mathematics. 2013. Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-488874
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-488874