An elasto-viscoplastic model for clay considering destructuralization and consolidation analysis of unstable behaviour

DOI NDLデジタルコレクション Web Site Web Site 被引用文献13件 参考文献30件
  • KIMOTO SAYURI
    Department of Civil and Earth Resources Engineering, Kyoto University
  • OKA FUSAO
    Department of Civil and Earth Resources Engineering, Kyoto University

書誌事項

タイトル別名
  • AN ELASTO-VISCOPLASTIC MODEL FOR CLAY CONSIDERING DESTRUCTURALIZATION AND CONSOLIDATION ANALYSIS OF UNSTABLE BEHAVIOR
  • Elasto Viscoplastic Model for Clay Considering Destructuralization and Consolidation Analysis of Unstable Behavior
  • An elasto-viscoplastic model for clay considering destrualization and consolidation analysis of unstable behavior

この論文をさがす

抄録

Instability is usually considered as a problem of shear failure. Unstable behavior is also observed during the consolidation process, whereby the stress paths depart from the failure line. In the present study, an elasto-viscoplastic constitutive model is extended to describe instability of both around the failure state, and away from the failure line. The instability is connected to structural degradation, and formulated as shrinkage of overconsolidation boundary surface and static yield surface in the constitutive model. One-dimensional consolidation process of clay has been simulated to study the effect of structural degradation on behavior during consolidation. The proposed model can effectively reproduce certain types of unstable behavior during consolidation, such as stagnation, or a temporary increase in pore water pressure, and a sudden increase in the settlement rate. Moreover, the distributions of axial strain exhibit apparent strain localization when structural degradation is taken into account. This phenomenon of the compressive strain localization is regarded as compaction bands, which may cause a large displacement.

収録刊行物

被引用文献 (13)*注記

もっと見る

参考文献 (30)*注記

もっと見る

関連プロジェクト

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ