Investigation on damage assessment of fiber-reinforced prestressed concrete containment under temperature and subsequent internal pressure
Following a loss of coolant accident (LOCA), prestressing concrete containment vessels (PCCVs) may experience high thermal load as well as internal pressure. The high temperature stress would increase the risk of premature damage to the containment, which reduces the safety margin during the increas...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-06-01
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| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573323001079 |
| _version_ | 1827933008474144768 |
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| author | Zhi Zheng Yong Wang Shuai Huang Xiaolan Pan Chunyang Su Ye Sun |
| author_facet | Zhi Zheng Yong Wang Shuai Huang Xiaolan Pan Chunyang Su Ye Sun |
| author_sort | Zhi Zheng |
| collection | DOAJ |
| description | Following a loss of coolant accident (LOCA), prestressing concrete containment vessels (PCCVs) may experience high thermal load as well as internal pressure. The high temperature stress would increase the risk of premature damage to the containment, which reduces the safety margin during the increasing internal pressure. However, current investigations cannot clearly address the issues of thermal-pressure coupling effect on damage propagation and thus safety of the containment. Thus, this paper offers three simple and powerful damage parameters to differentiate the severity of damage of the containment. Moreover, despite of the temperature action severely threatening the pressure performance of the containment, the research regarding the improvement of the resistant performance of the containment is quite scarce. Therefore, in this paper, a comprehensive comparison of damage propagation and mechanism between conventional and fiber-reinforced concrete (FRC) containments is performed. The effects of fiber characteristics parameters on damage propagation of structures following the LOCA are also specifically revealed. It is found that the proposed damage indices can properly indicate state of damage in the containment body and the addition of fiber can be used to obviously mitigate the damage propagation in PCCV considering the thermal-pressure coupling. |
| first_indexed | 2024-03-13T07:18:37Z |
| format | Article |
| id | doaj.art-f0d73087f77947de8fa95a3a97345755 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-03-13T07:18:37Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-f0d73087f77947de8fa95a3a973457552023-06-05T04:12:40ZengElsevierNuclear Engineering and Technology1738-57332023-06-0155620532068Investigation on damage assessment of fiber-reinforced prestressed concrete containment under temperature and subsequent internal pressureZhi Zheng0Yong Wang1Shuai Huang2Xiaolan Pan3Chunyang Su4Ye Sun5College of Civil Engineering, Taiyuan University of Technology, Taiyuan, 030024, ChinaCollege of Civil Engineering, Taiyuan University of Technology, Taiyuan, 030024, ChinaCollege of Civil Engineering, Taiyuan University of Technology, Taiyuan, 030024, ChinaCorresponding author.; College of Civil Engineering, Taiyuan University of Technology, Taiyuan, 030024, ChinaCollege of Civil Engineering, Taiyuan University of Technology, Taiyuan, 030024, ChinaCollege of Civil Engineering, Taiyuan University of Technology, Taiyuan, 030024, ChinaFollowing a loss of coolant accident (LOCA), prestressing concrete containment vessels (PCCVs) may experience high thermal load as well as internal pressure. The high temperature stress would increase the risk of premature damage to the containment, which reduces the safety margin during the increasing internal pressure. However, current investigations cannot clearly address the issues of thermal-pressure coupling effect on damage propagation and thus safety of the containment. Thus, this paper offers three simple and powerful damage parameters to differentiate the severity of damage of the containment. Moreover, despite of the temperature action severely threatening the pressure performance of the containment, the research regarding the improvement of the resistant performance of the containment is quite scarce. Therefore, in this paper, a comprehensive comparison of damage propagation and mechanism between conventional and fiber-reinforced concrete (FRC) containments is performed. The effects of fiber characteristics parameters on damage propagation of structures following the LOCA are also specifically revealed. It is found that the proposed damage indices can properly indicate state of damage in the containment body and the addition of fiber can be used to obviously mitigate the damage propagation in PCCV considering the thermal-pressure coupling.http://www.sciencedirect.com/science/article/pii/S1738573323001079PCCVFRCLOCAThermal-pressure couplingDamage evaluation |
| spellingShingle | Zhi Zheng Yong Wang Shuai Huang Xiaolan Pan Chunyang Su Ye Sun Investigation on damage assessment of fiber-reinforced prestressed concrete containment under temperature and subsequent internal pressure Nuclear Engineering and Technology PCCV FRC LOCA Thermal-pressure coupling Damage evaluation |
| title | Investigation on damage assessment of fiber-reinforced prestressed concrete containment under temperature and subsequent internal pressure |
| title_full | Investigation on damage assessment of fiber-reinforced prestressed concrete containment under temperature and subsequent internal pressure |
| title_fullStr | Investigation on damage assessment of fiber-reinforced prestressed concrete containment under temperature and subsequent internal pressure |
| title_full_unstemmed | Investigation on damage assessment of fiber-reinforced prestressed concrete containment under temperature and subsequent internal pressure |
| title_short | Investigation on damage assessment of fiber-reinforced prestressed concrete containment under temperature and subsequent internal pressure |
| title_sort | investigation on damage assessment of fiber reinforced prestressed concrete containment under temperature and subsequent internal pressure |
| topic | PCCV FRC LOCA Thermal-pressure coupling Damage evaluation |
| url | http://www.sciencedirect.com/science/article/pii/S1738573323001079 |
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