The "Stress-Dilatancy" Hypothesis Revisited: Shear-Banding Related Instabilities (IWS-ATHENS 2003「地盤力学における予測とシュミレーション手法」特集号)

スポンサーリンク

概要

• 論文の詳細を見る

• In this paper we will firstly consider the range of validity of Taylor's "stress-dilatancy" hypothesis. From this study we conclude that Taylor's rule is strictly valid only for coaxial deformations. For smooth non-coaxial deformations Taylor's rule must be modified according to the rule proposed by Gutierrez and Ishihara (2000), which includes a "non-coaxiality" correction factor. Strictly speaking the stress-dilatancy rule breaks down if in a process an abrupt rotation of principal axes is imposed, as this is the case at the onset of localization. During this phase the corresponding stress function decreases monotonously, whereas the dilatancy oscillates between large negative and large positive values. Finally it is shown that in globally undrained, displacement controlled tests this incipient post-failure contractancy to dilatancy oscillation should result in a dynamic instability.

• 社団法人地盤工学会の論文
• 2005-04-15

著者

• Georgopoulos Ioannis

  Faculty Of Applied Mathematics And Physics Section Of Mechanics Laboratory Of Geomaterials Greece

• VARDOULAKIS IOANNIS

  Faculty of Applied Mathematics and Physics, Section of Mechanics, Laboratory of Geomaterials, Greece

• Vardoulakis Ioannis

  Faculty Of Applied Mathematics And Physics Section Of Mechanics Laboratory Of Geomaterials Greece

• Vardoulakis Ioannis

  Faculty Of Applied Mathematics And Physics National Technical University Of Athens

• Georgopoulos Ioannis-Orestis

  Faculty of Applied Mathematics and Physics, Section of Mechanics, Laboratory of Geomaterials, Greece

関連論文

• The "Stress-Dilatancy" Hypothesis Revisited: Shear-Banding Related Instabilities (IWS-ATHENS 2003「地盤力学における予測とシュミレーション手法」特集号)
• Thermo-poro-mechanical Properties of the Aigion Fault Clayey Gouge--Application to the Analysis of Shear Heating and Fluid Pressurization (IWS-ATHENS 2003「地盤力学における予測とシュミレーション手法」特集号)

スポンサーリンク