Influence of the Elastic-Plastic Dynamic Artificial Boundary on the Progressive Collapse Performance of Truss Structures
The traditional fixed boundary could not transmit the elastic-plastic stress waves in the progressive collapse analysis of the truss structures, leading to discrepancies in understanding the true response of structures. To solve the critical problem, a new dynamic artificial boundary is proposed and...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-01-01
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| Series: | Buildings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-5309/14/1/212 |
| _version_ | 1797340011098537984 |
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| author | Jiawen Mao Jinsan Ju |
| author_facet | Jiawen Mao Jinsan Ju |
| author_sort | Jiawen Mao |
| collection | DOAJ |
| description | The traditional fixed boundary could not transmit the elastic-plastic stress waves in the progressive collapse analysis of the truss structures, leading to discrepancies in understanding the true response of structures. To solve the critical problem, a new dynamic artificial boundary is proposed and integrated into the truss structure to transmit elastic-plastic stress waves. The new dynamic artificial boundary is established through the integration of the elastic-plastic constitutive model into the governing equation of the stress wave. This boundary is subsequently implemented within the ABAQUS finite element software for the purpose of conducting progressive collapse analysis of the truss structures. The progressive collapse simulation of the truss structures involves a comparative analysis between the new dynamic artificial boundary and the traditional fixed boundary. Numerical analysis demonstrates that the dynamic artificial boundary led to varied initial failure and collapse compared to the fixed boundary. The failure typically occurs at the mid-span under the dynamic boundary. In contrast, additional failures occur near the support columns under the fixed boundary due to stress wave reflections. The dynamic artificial boundary more closely reflects the physical reality and provides a new method for the progressive collapse analysis of the truss structures in practical applications. |
| first_indexed | 2024-03-08T09:55:48Z |
| format | Article |
| id | doaj.art-61f0a3b61b704d1a931c9266f4398225 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-08T09:55:48Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-61f0a3b61b704d1a931c9266f43982252024-01-29T13:49:17ZengMDPI AGBuildings2075-53092024-01-0114121210.3390/buildings14010212Influence of the Elastic-Plastic Dynamic Artificial Boundary on the Progressive Collapse Performance of Truss StructuresJiawen Mao0Jinsan Ju1School of Mechanics and Civil Engineering, China University of Mining & Technology—Beijing, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining & Technology—Beijing, Beijing 100083, ChinaThe traditional fixed boundary could not transmit the elastic-plastic stress waves in the progressive collapse analysis of the truss structures, leading to discrepancies in understanding the true response of structures. To solve the critical problem, a new dynamic artificial boundary is proposed and integrated into the truss structure to transmit elastic-plastic stress waves. The new dynamic artificial boundary is established through the integration of the elastic-plastic constitutive model into the governing equation of the stress wave. This boundary is subsequently implemented within the ABAQUS finite element software for the purpose of conducting progressive collapse analysis of the truss structures. The progressive collapse simulation of the truss structures involves a comparative analysis between the new dynamic artificial boundary and the traditional fixed boundary. Numerical analysis demonstrates that the dynamic artificial boundary led to varied initial failure and collapse compared to the fixed boundary. The failure typically occurs at the mid-span under the dynamic boundary. In contrast, additional failures occur near the support columns under the fixed boundary due to stress wave reflections. The dynamic artificial boundary more closely reflects the physical reality and provides a new method for the progressive collapse analysis of the truss structures in practical applications.https://www.mdpi.com/2075-5309/14/1/212progressive collapsereflected waves at the boundarydynamic artificial boundary elementtruss structure |
| spellingShingle | Jiawen Mao Jinsan Ju Influence of the Elastic-Plastic Dynamic Artificial Boundary on the Progressive Collapse Performance of Truss Structures Buildings progressive collapse reflected waves at the boundary dynamic artificial boundary element truss structure |
| title | Influence of the Elastic-Plastic Dynamic Artificial Boundary on the Progressive Collapse Performance of Truss Structures |
| title_full | Influence of the Elastic-Plastic Dynamic Artificial Boundary on the Progressive Collapse Performance of Truss Structures |
| title_fullStr | Influence of the Elastic-Plastic Dynamic Artificial Boundary on the Progressive Collapse Performance of Truss Structures |
| title_full_unstemmed | Influence of the Elastic-Plastic Dynamic Artificial Boundary on the Progressive Collapse Performance of Truss Structures |
| title_short | Influence of the Elastic-Plastic Dynamic Artificial Boundary on the Progressive Collapse Performance of Truss Structures |
| title_sort | influence of the elastic plastic dynamic artificial boundary on the progressive collapse performance of truss structures |
| topic | progressive collapse reflected waves at the boundary dynamic artificial boundary element truss structure |
| url | https://www.mdpi.com/2075-5309/14/1/212 |
| work_keys_str_mv | AT jiawenmao influenceoftheelasticplasticdynamicartificialboundaryontheprogressivecollapseperformanceoftrussstructures AT jinsanju influenceoftheelasticplasticdynamicartificialboundaryontheprogressivecollapseperformanceoftrussstructures |