An assessment of support effect on reinforced concrete structure under inclined impact conditions
As an outer protective engineering structure for a nuclear power plant (NPP), a reinforced concrete (RC) containment wall of NPP should be evaluated for safety requirement related to external threats. Therefore, much attention has been paid to investigate the impact resistance ability of the RC plat...
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2025-03-01
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| Series: | Mechanical Engineering Journal |
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| Online Access: | https://www.jstage.jst.go.jp/article/mej/12/4/12_24-00450/_pdf/-char/en |
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| author | Zuoyi KANG Yukihiko OKUDA Akemi NISHIDA Haruji TSUBOTA Masaharu ITOH |
| author_facet | Zuoyi KANG Yukihiko OKUDA Akemi NISHIDA Haruji TSUBOTA Masaharu ITOH |
| author_sort | Zuoyi KANG |
| collection | DOAJ |
| description | As an outer protective engineering structure for a nuclear power plant (NPP), a reinforced concrete (RC) containment wall of NPP should be evaluated for safety requirement related to external threats. Therefore, much attention has been paid to investigate the impact resistance ability of the RC plate structure subjected to projectile impact. In these studies, most of them focused on local damage of RC plate structures struck by a rigid projectile along the normal direction of the impact surface, while only few studies have focused on oblique impact. We have therefore conducted a series of impact tests under different impact conditions covering impact angles, stiffnesses of projectiles, etc. The objective is to figure out the different impact behaviors of the RC plate structures. We also intended to put forward a numerical method based on the test results, and to validate the proposed method through comparisons between experimental and numerical results. In the test results, the reaction forces of RC plate were measured by using the load cells installed on the four corners of RC plate’s back surface. In the oblique impact, a special support structure was manufactured to fix the RC plate. It is speculated that the different supporting structure may influence the test results of reaction force. Thus, this work concentrates on the effect of the stiffnesses of the supports for oblique impact on the reaction forces of RC plate. Until now, static loading tests were carried out to confirm the stiffnesses of the components of supporting parts. This paper reports the findings obtained from the comparison between the numerical results using the experimental values as spring constants in the finite element (FE) model and the reaction force measurement results. |
| format | Article |
| id | doaj-art-fa2c2b2910554210a1dcd76d798c9d11 |
| institution | OA Journals |
| issn | 2187-9745 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Mechanical Engineering Journal |
| spelling | doaj-art-fa2c2b2910554210a1dcd76d798c9d112025-08-20T01:59:34ZengThe Japan Society of Mechanical EngineersMechanical Engineering Journal2187-97452025-03-0112424-0045024-0045010.1299/mej.24-00450mejAn assessment of support effect on reinforced concrete structure under inclined impact conditionsZuoyi KANG0Yukihiko OKUDA1Akemi NISHIDA2Haruji TSUBOTA3Masaharu ITOH4Japan Atomic Energy AgencyJapan Atomic Energy AgencyJapan Atomic Energy AgencyJapan Atomic Energy AgencyJapan Atomic Energy AgencyAs an outer protective engineering structure for a nuclear power plant (NPP), a reinforced concrete (RC) containment wall of NPP should be evaluated for safety requirement related to external threats. Therefore, much attention has been paid to investigate the impact resistance ability of the RC plate structure subjected to projectile impact. In these studies, most of them focused on local damage of RC plate structures struck by a rigid projectile along the normal direction of the impact surface, while only few studies have focused on oblique impact. We have therefore conducted a series of impact tests under different impact conditions covering impact angles, stiffnesses of projectiles, etc. The objective is to figure out the different impact behaviors of the RC plate structures. We also intended to put forward a numerical method based on the test results, and to validate the proposed method through comparisons between experimental and numerical results. In the test results, the reaction forces of RC plate were measured by using the load cells installed on the four corners of RC plate’s back surface. In the oblique impact, a special support structure was manufactured to fix the RC plate. It is speculated that the different supporting structure may influence the test results of reaction force. Thus, this work concentrates on the effect of the stiffnesses of the supports for oblique impact on the reaction forces of RC plate. Until now, static loading tests were carried out to confirm the stiffnesses of the components of supporting parts. This paper reports the findings obtained from the comparison between the numerical results using the experimental values as spring constants in the finite element (FE) model and the reaction force measurement results.https://www.jstage.jst.go.jp/article/mej/12/4/12_24-00450/_pdf/-char/enreinforced concrete structureoblique impact teststiffness of projectileimpact simulationfinite element analysis |
| spellingShingle | Zuoyi KANG Yukihiko OKUDA Akemi NISHIDA Haruji TSUBOTA Masaharu ITOH An assessment of support effect on reinforced concrete structure under inclined impact conditions Mechanical Engineering Journal reinforced concrete structure oblique impact test stiffness of projectile impact simulation finite element analysis |
| title | An assessment of support effect on reinforced concrete structure under inclined impact conditions |
| title_full | An assessment of support effect on reinforced concrete structure under inclined impact conditions |
| title_fullStr | An assessment of support effect on reinforced concrete structure under inclined impact conditions |
| title_full_unstemmed | An assessment of support effect on reinforced concrete structure under inclined impact conditions |
| title_short | An assessment of support effect on reinforced concrete structure under inclined impact conditions |
| title_sort | assessment of support effect on reinforced concrete structure under inclined impact conditions |
| topic | reinforced concrete structure oblique impact test stiffness of projectile impact simulation finite element analysis |
| url | https://www.jstage.jst.go.jp/article/mej/12/4/12_24-00450/_pdf/-char/en |
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