Open AccessA Modified Double Yield Surface Model of Frozen Soil Considering Particle Breakage
Author(s) -
Fengming Luo,
Fang Yan Guo,
Siwen Cai,
Yuxin Liu,
Wei Wei,
Lin Ji
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/358/2/022015
Subject(s) - breakage , dilatant , shearing (physics) , materials science , particle (ecology) , yield (engineering) , geotechnical engineering , yield surface , softening , constitutive equation , granular material , composite material , mechanics , structural engineering , finite element method , geology , engineering , physics , oceanography
As a basic phenomenon of granular materials under high stress conditions, particle breakage has an important influence on the strength and stress-strain relationship of materials. It is generally believed that that frozen soil undergoes significant particle breakage during the triaxial shearing process. Based on original double yield surface model, a modified double yield surface constitutive model which considered particle breakage has been proposed. Compared with the experimental data, the proposed double yield surface model can describe its strain softening characteristics, dilatancy, elastoplasticity and particle breakage characteristics.