期刊
PHYSICAL REVIEW E
卷 90, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.90.042202
关键词
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资金
- JSPS KAKENHI [25287098, 22540398, 25800220]
- Yukawa International Program for Quark-Hadron Sciences (YIPQS)
- Grants-in-Aid for Scientific Research [22540398, 25800220, 25287098] Funding Source: KAKEN
Shear modulus of frictionless granular materials near the jamming transition under oscillatory shear is numerically investigated. It is found that the shear modulus G satisfies a scaling law to interpolate between G similar to (phi - phi(J))(1/2) and G similar to gamma(-1/2)(0) (phi - phi(J)) for a linear spring model of the elastic interaction between contacting grains, where phi, phi(J), and gamma(0) are, respectively, the volume fraction of grains, the fraction at the jamming point, and the amplitude of the oscillatory shear. The linear relation between the shear modulus and phi - phi(J) can be understood by slip avalanches.
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