コンクリート工学論文集
Online ISSN : 2186-2745
Print ISSN : 1340-4733
ISSN-L : 1340-4733
塑性理論によるコンクリートの載荷経路依存型圧縮軟化特性のモデル化
水野 英二畑中 重光
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ジャーナル フリー

1992 年 3 巻 2 号 p. 1-13

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In this paper, a strain space based plasticity model, which was previously proposed by the authors to represent the compressive softening behavior as well as hardening behavior of concrete materials, has been applied to assess the capability to predict the path-dependent behavior of concrete under the conditions such as (1) monotonically increasing confining pressures, (2) suddenly increasing confining pressures, and (3) suddenly reducing confining pressures. Firstly, a proposed model has been briefly reviewed, and a detail modeling that can treat a path-dependent behavior of concrete has been explained by introducing a damage concept of concrete material. Secondly, the general incremental stress-strain relation has been given in a tensorial form. Finally, the model predictions have been compared with the experimental data available from triaxial compression tests under three types of confining pressure loadings. It has been concluded that the proposed model can well predict the general path-dependent behavior of concrete materials particularly in the softening region.

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© 公益社団法人 日本コンクリート工学会
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