THE EFFECT OF MODE OF LOADING ON PARTICLE-SCALE DAMAGE

SOILS AND FOUNDATIONS

FATIN N. ALTUHAFI²  MATTHEW R. COOP¹ 

[1] The City University of Hong Kong;University of East London

关键词: grain shape;    grain size;    granular material;    measurement;    microscopy;    (IGC: D3);   

DOI  :  10.3208/sandf.51.849

学科分类：建筑学

来源: Japanese Geotechnical Society / Jiban Kogakkai

【 摘 要 】

References(21)Cited-By(4)The effect of different modes of loading on particle characteristics of a silica sand is investigated. The particle characteristics were examined for samples taken to pre- and post- yield states in compression as well as after shearing to high strains. The change to particle characteristics such as surface roughness, shape and size due to loading were examined. The results show that although catastrophic particle breakage starts with the yielding of the material, changes to the particle surfaces at contacts, through minor damage to particle asperities by yielding or chipping, can impose some local changes even before reaching the yield stress. The study also confirmed the importance of the sample initial grading on defining the mode of particle interaction during compression.

【 授权许可】

Unknown