Effect of aspect ratio on the mechanical behavior of packings of spheroids
PBN-AR
Instytucja
Instytut Agrofizyki im. Bohdana Dobrzańskiego Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS (30pkt w roku publikacji)
ISSN
0378-4371
EISSN
Wydawca
ELSEVIER SCIENCE BV
DOI
URL
Rok publikacji
2018
Numer zeszytu
Strony od-do
1-11
Numer tomu
501
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
angielski
Uniaxial confined compression
Granular matter
Particle shape
Spheroids
Streszczenia
Język
angielski
Treść
This paper presents measurements of the mechanical response of assemblages formed by spheroid particles. Sets of such particles in the form of thin, cylindrical samples were subjected to uniaxial confined compression. The particles were flattened and elongated, with aspect ratios ranging from 0.5 to 2.5. All particles were fabricated using a 3D printer and each had the same volume. Because the particles had well-defined shapes, it was possible to experimentally observe how the mechanical response of the anisotropic and highly constrained samples depended on the elongation of the particles. In particular, we showed how the sample density, lateral pressure ratio, and work done to compact a sample of elongated or flattened particles changed with change in particle aspect ratio. Furthermore, we found that the evolution of packing density in subsequent loading–unloading cycles followed a stretched exponential law regardless of particle aspect ratio.
Cechy publikacji
original_article
Inne
System-identifier
PX-5aaa4a8bd5deb1580d409201
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