Natural clays have their structure which must be destroyed during the deformation process . In this paper a new kind of constitutive model capable to describe the damage of soil structure has been proposed. A structured clay in this model is regarded as an assembly of lumps of differentsizes
and it is assumed that the total deformation consists of 3 parts
i.e. elastic deformation of lumps
plastic deformation due to sliding between lumps and irrecoverable deformation due to crushing of lumps. Usually yield function is introduced to describe the plastic deformation
however
anew damage function is proposed here to describe the additional deformation due to the damage of soil structure. Finally
a stress-strain relationship expressed in incremental form is formulated and a procedure is suggested to determine the model constants.
A bouding surface masonry model for structured clays
Advance in researches on structured clay
Advance in researches on structured clay
A constitutive model of subgrade in a seasonally frozen area with considering freeze-thaw cycles
State-dependent elastoplastic constitutive model for rockfill materials
Related Author
LI Neng-hui
YIN Jian-hua
CHEN Tie-lin
SHEN Zhu-jiang
ZHOU Cheng
FAN Wen
SHEN Zhu-jiang
LIU En-long
Related Institution
Department of Hydraulic Engineering, Tsinghua University
清华大学水利工程系
School of Civil Engineering, Hebei Institute of Architecture and Civil Engineering
Qinghai Research and Observation Base, Key Laboratory of Highway Construction & Maintenance Technology in Permafrost Region, Qinghai Research Institute of Transportation
School of Civil Engineering, Beijing Jiaotong University