Study on the creep behavior of clay under complex triaxial loading in relation to the microstructure

Abstract : The objective of this research is to analyze the creep behavior of a typical clay along triaxial tests, moreover, to analyze the microstructural mechanisms of creep. Analysis on the macroscopic results ascertained that both dilatancy and contractancy phenomena could occur during creep. The magnitude of the dilatancy/contractancy during creep was guided by the test conditions: stress level and the over consolidation ratio, which specifically governed the direction of the volumetric strain variations. The results of SEM indicated that the microstructural evolution of the clay after the mechanical loading depend on the stress history. Afterwards, the structural evolution in creep phase depends on the structural pattern developed in monotonic loading
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Submitted on : Tuesday, January 8, 2019 - 12:42:21 PM
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  • HAL Id : tel-01917287, version 1

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Dan Zhao. Study on the creep behavior of clay under complex triaxial loading in relation to the microstructure. Materials Science [cond-mat.mtrl-sci]. Université de Lorraine, 2017. English. ⟨NNT : 2017LORR0372⟩. ⟨tel-01917287⟩

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