Výsledky vyhledávání - "Masaharu Itoh"

A Dual-Limit-Erosion Approach to Estimate Fracture Zone of RC Slabs Subjected to High Velocity Impact Loads

Autor: Ryo Matsuzawa, Masuhiro Beppu, Masaharu Itoh

Publikováno v: Volume 9: Prof. Norman Jones Honoring Symposium on Impact Engineering; Prof. Yukio Ueda Honoring Symposium on Idealized Nonlinear Mechanics for Welding and Strength of Structures.

This paper presents a novel erosion approach to reproduce fracture of concrete subjected to impact loadings. An erosion method is a numerical technique to remove highly distorted Lagrangian meshes which, if not deleted, tend to decrease the accuracy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::677a5460791ec5d64a070236d94e9cdd
https://doi.org/10.1115/omae2016-54694

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Design Concept for Local Damage of Concrete Plates Subjected to High Velocity Impact

Autor: Masaharu Itoh, Masuhiro Beppu, Koji Miwa, Masahide Katayama, Makoto Suzuki, Takeshi Morita

Publikováno v: International Journal of Protective Structures. 3:161-175

Local damage of concrete structures, i.e. spalling, scabbing and perforation, would occur when concrete structures are impacted by high velocity projectiles. To propose protective design of concrete structures against high velocity impact, failure me

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dfcc7b9634ec6c2e39aa0d93e8d69699
https://doi.org/10.1260/2041-4196.3.2.161

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AN ESTIMATION METHOD OF LOCAL DAMAGE IN CONCRETE PLATES BY THE MODIFIED THEORETICAL MODEL

Autor: Tomonori Ohno, Koji Miwa, Masahide Katayama, Masuhiro Beppu, Masaharu Itoh

Publikováno v: Doboku Gakkai Ronbunshuu A. 65:844-858

本研究は，剛飛翔体の高速衝突を受けて生じるコンクリート板の局部破壊の防護設計法について検討したものである．まず，コンクリート板の高速衝突実験を行うとともに，局部的な損�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3b24249fc31899ffc00bc91e14ea713c
https://doi.org/10.2208/jsceja.65.844

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陽的な大変形解析に適した非構造中点連結多面体セルの開発

Autor: Tetsuyuki Hiroe, Masaharu Itoh

Publikováno v: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A. 75:889-895

This paper describes a a numerical algorithm to improve the poor performance of a four-node linear tetrahedral element. For this purpose a novel finite volume method utilizing an arbitrary median-meshed polyhedral (AMP) cell is developed. The AMP cel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f88053372b37e0d3d0a3f0e209d85050
https://doi.org/10.1299/kikaia.75.889

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Damage evaluation of concrete plates by high-velocity impact

Autor: Masahide Katayama, T. Ohno, Koji Miwa, Masuhiro Beppu, Masaharu Itoh

Publikováno v: International Journal of Impact Engineering. 35:1419-1426

This paper describes the evaluation of the local damage of concrete plates by the impact of high-velocity rigid projectiles. A new launching system of mushroom-shaped projectiles has been developed. Impact tests for concrete plates have been conducte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2fe000890be15f65d2bedda33f676f20
https://doi.org/10.1016/j.ijimpeng.2008.07.021

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Numerical analysis method for the RC and geological structures subjected to extreme loading by energetic materials

Autor: Masaharu Itoh, Masahide Katayama, S. Tamura, Masuhiro Beppu, T. Ohno

Publikováno v: International Journal of Impact Engineering. 34:1546-1561

This paper proposes and demonstrates a numerical simulation method suitable to analyze the local damage and dynamic response of the structures composed of the reinforced concrete (RC) and/or the geological materials subjected to extremely severe load

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a89d25c018ac5b8b71c39d44052b3fdb
https://doi.org/10.1016/j.ijimpeng.2006.10.013

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