Details
| Original language | English |
|---|---|
| Article number | 105204 |
| Journal | Computers and geotechnics |
| Volume | 156 |
| Early online date | 19 Jan 2023 |
| Publication status | Published - Apr 2023 |
| Externally published | Yes |
Abstract
Since phase field fracture model is computationally demanding, its application is mostly limited to relatively simple and small-scale specimens or structural components. The main objective of this paper is to extend the application of the phase field fracture model to practical engineering structures with strong global–local properties. A computationally and operationally feasible coupling-type global–local phase field method is proposed, in which the phase field model is resolved by fine mesh on a local scale, while a far coarser mesh is adopted to discretize the global region. The numerical solution by the s-version method is formulated to couple the partly overlapping global and local regions with different finite element discretization. The accuracy and efficiency of the s-version method-based phase field fracture model are investigated through several representative numerical examples. The application of the proposed method to a large structure is demonstrated by an example, where the fire-induced spalling process taking place in a shallow-buried box culvert is resolved by the s-version method-based phase field model.
Keywords
- Engineering structures, Global–local approach, Localized fractures, Phase field modeling, S-version method
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geotechnical Engineering and Engineering Geology
- Computer Science(all)
- Computer Science Applications
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In: Computers and geotechnics, Vol. 156, 105204, 04.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Application of s-version finite element method to phase field modeling for localized fractures
AU - Cheng, Panpan
AU - Zhuang, Xiaoying
AU - Zhu, Hehua
AU - Fish, Jacob
N1 - Funding Information: This study is financially supported by the scholarship from China Scholarship Council (CSC) (Grant No. 201906260161) and the National Natural Science Foundation of China (with Grant No. 51478345 ).
PY - 2023/4
Y1 - 2023/4
N2 - Since phase field fracture model is computationally demanding, its application is mostly limited to relatively simple and small-scale specimens or structural components. The main objective of this paper is to extend the application of the phase field fracture model to practical engineering structures with strong global–local properties. A computationally and operationally feasible coupling-type global–local phase field method is proposed, in which the phase field model is resolved by fine mesh on a local scale, while a far coarser mesh is adopted to discretize the global region. The numerical solution by the s-version method is formulated to couple the partly overlapping global and local regions with different finite element discretization. The accuracy and efficiency of the s-version method-based phase field fracture model are investigated through several representative numerical examples. The application of the proposed method to a large structure is demonstrated by an example, where the fire-induced spalling process taking place in a shallow-buried box culvert is resolved by the s-version method-based phase field model.
AB - Since phase field fracture model is computationally demanding, its application is mostly limited to relatively simple and small-scale specimens or structural components. The main objective of this paper is to extend the application of the phase field fracture model to practical engineering structures with strong global–local properties. A computationally and operationally feasible coupling-type global–local phase field method is proposed, in which the phase field model is resolved by fine mesh on a local scale, while a far coarser mesh is adopted to discretize the global region. The numerical solution by the s-version method is formulated to couple the partly overlapping global and local regions with different finite element discretization. The accuracy and efficiency of the s-version method-based phase field fracture model are investigated through several representative numerical examples. The application of the proposed method to a large structure is demonstrated by an example, where the fire-induced spalling process taking place in a shallow-buried box culvert is resolved by the s-version method-based phase field model.
KW - Engineering structures
KW - Global–local approach
KW - Localized fractures
KW - Phase field modeling
KW - S-version method
UR - http://www.scopus.com/inward/record.url?scp=85149719837&partnerID=8YFLogxK
U2 - 10.1016/j.compgeo.2022.105204
DO - 10.1016/j.compgeo.2022.105204
M3 - Article
AN - SCOPUS:85149719837
VL - 156
JO - Computers and geotechnics
JF - Computers and geotechnics
SN - 0266-352X
M1 - 105204
ER -