Analytical study of perforation damage in reinforced concrete slabs subjected to oblique impact by projectiles with different nose shapes

Considerable research has been carried out to establish a rational assessment method for nuclear power plants against external projectile impact. Most of the empirical formulas have been proposed to quantitatively investigate local damage to reinforced concrete (RC) structures caused by rigid projec...

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Autores principales:	Zuoyi KANG, Yukihiko OKUDA, Akemi NISHIDA, Haruji TSUBOTA, Yinsheng LI
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2020
Materias:	reinforced concrete (rc) structure oblique impact perforation damage ls-dyna residual velocity hemispherical nose shape Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/bfbb65f66d244b87809bb295297fca53
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spelling	oai:doaj.org-article:bfbb65f66d244b87809bb295297fca532021-11-29T06:04:29ZAnalytical study of perforation damage in reinforced concrete slabs subjected to oblique impact by projectiles with different nose shapes2187-974510.1299/mej.20-00331https://doaj.org/article/bfbb65f66d244b87809bb295297fca532020-11-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/8/1/8_20-00331/_pdf/-char/enhttps://doaj.org/toc/2187-9745Considerable research has been carried out to establish a rational assessment method for nuclear power plants against external projectile impact. Most of the empirical formulas have been proposed to quantitatively investigate local damage to reinforced concrete (RC) structures caused by rigid projectile impact. These formulas were derived based on impact tests performed normal to the target structure, while only a few impact tests oblique to the target structure were studied. This work aims to propose a new formula for evaluating local damage to RC structures caused by oblique impact based on experimental and simulation results. At present, we have validated an analytical method via comparison with experimental results and have conducted simulation analyses of oblique impact assessments on RC slabs using projectile with flat nose shape. In this study, the same analytical method will be used to investigate perforation damage to RC slabs subjected to oblique impact by projectiles with hemispherical nose shape. The effect of projectile nose shape on perforation damage to RC slabs, the residual velocity of projectiles and the time history of energy transmission will be discussed.Zuoyi KANGYukihiko OKUDAAkemi NISHIDAHaruji TSUBOTAYinsheng LIThe Japan Society of Mechanical Engineersarticlereinforced concrete (rc) structureoblique impactperforation damagels-dynaresidual velocityhemispherical nose shapeMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 8, Iss 1, Pp 20-00331-20-00331 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	reinforced concrete (rc) structure oblique impact perforation damage ls-dyna residual velocity hemispherical nose shape Mechanical engineering and machinery TJ1-1570
spellingShingle	reinforced concrete (rc) structure oblique impact perforation damage ls-dyna residual velocity hemispherical nose shape Mechanical engineering and machinery TJ1-1570 Zuoyi KANG Yukihiko OKUDA Akemi NISHIDA Haruji TSUBOTA Yinsheng LI Analytical study of perforation damage in reinforced concrete slabs subjected to oblique impact by projectiles with different nose shapes
description	Considerable research has been carried out to establish a rational assessment method for nuclear power plants against external projectile impact. Most of the empirical formulas have been proposed to quantitatively investigate local damage to reinforced concrete (RC) structures caused by rigid projectile impact. These formulas were derived based on impact tests performed normal to the target structure, while only a few impact tests oblique to the target structure were studied. This work aims to propose a new formula for evaluating local damage to RC structures caused by oblique impact based on experimental and simulation results. At present, we have validated an analytical method via comparison with experimental results and have conducted simulation analyses of oblique impact assessments on RC slabs using projectile with flat nose shape. In this study, the same analytical method will be used to investigate perforation damage to RC slabs subjected to oblique impact by projectiles with hemispherical nose shape. The effect of projectile nose shape on perforation damage to RC slabs, the residual velocity of projectiles and the time history of energy transmission will be discussed.
format	article
author	Zuoyi KANG Yukihiko OKUDA Akemi NISHIDA Haruji TSUBOTA Yinsheng LI
author_facet	Zuoyi KANG Yukihiko OKUDA Akemi NISHIDA Haruji TSUBOTA Yinsheng LI
author_sort	Zuoyi KANG
title	Analytical study of perforation damage in reinforced concrete slabs subjected to oblique impact by projectiles with different nose shapes
title_short	Analytical study of perforation damage in reinforced concrete slabs subjected to oblique impact by projectiles with different nose shapes
title_full	Analytical study of perforation damage in reinforced concrete slabs subjected to oblique impact by projectiles with different nose shapes
title_fullStr	Analytical study of perforation damage in reinforced concrete slabs subjected to oblique impact by projectiles with different nose shapes
title_full_unstemmed	Analytical study of perforation damage in reinforced concrete slabs subjected to oblique impact by projectiles with different nose shapes
title_sort	analytical study of perforation damage in reinforced concrete slabs subjected to oblique impact by projectiles with different nose shapes
publisher	The Japan Society of Mechanical Engineers
publishDate	2020
url	https://doaj.org/article/bfbb65f66d244b87809bb295297fca53
work_keys_str_mv	AT zuoyikang analyticalstudyofperforationdamageinreinforcedconcreteslabssubjectedtoobliqueimpactbyprojectileswithdifferentnoseshapes AT yukihikookuda analyticalstudyofperforationdamageinreinforcedconcreteslabssubjectedtoobliqueimpactbyprojectileswithdifferentnoseshapes AT akeminishida analyticalstudyofperforationdamageinreinforcedconcreteslabssubjectedtoobliqueimpactbyprojectileswithdifferentnoseshapes AT harujitsubota analyticalstudyofperforationdamageinreinforcedconcreteslabssubjectedtoobliqueimpactbyprojectileswithdifferentnoseshapes AT yinshengli analyticalstudyofperforationdamageinreinforcedconcreteslabssubjectedtoobliqueimpactbyprojectileswithdifferentnoseshapes
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Analytical study of perforation damage in reinforced concrete slabs subjected to oblique impact by projectiles with different nose shapes

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