93 citations · 385 across the 13 of their papers we have counts for
5 papers · 1 filter
Shear-wave-induced softening and simultaneous compaction in dense granular media through acoustic lubrication at flow heterogeneities
Charles K. C. Lieou, Jerome Laurent, Paul A. Johnson +1
We report the simultaneous softening and compaction of a confined dense granular pack in acoustic resonance experiments. Elastic softening is manifested by a reduction of the shear…
Mean-field model for the Curie-Weiss temperature dependence of coherence length in metallic liquids
Charles K. C. Lieou, Takeshi Egami
The coherence length of the medium-range order (MRO) in metallic liquids is known to display a Curie-Weiss temperature dependence; its inverse is linearly related to temperature, a…
Stick-slip instabilities in sheared granular flow: the role of friction and acoustic vibrations
Charles K. C. Lieou, Ahmed E. Elbanna, J. S. Langer +1
We propose a theory of shear flow in dense granular materials. A key ingredient of the theory is an effective temperature that determines how the material responds to external driv…
Grain fragmentation in sheared granular flow: weakening effects, energy dissipation, and strain localization
Charles K. C. Lieou, Ahmed E. Elbanna, Jean M. Carlson
We describe the shear flow of a disordered granular material in the presence of grain fracture using the shear-transformation-zone (STZ) theory of amorphous plasticity adapted to s…
Sacrificial bonds and hidden length in biomaterials -- a kinetic, constitutive description of strength and toughness in bone
Charles K. C. Lieou, Ahmed E. Elbanna, Jean M. Carlson
Sacrificial bonds and hidden length in structural molecules account for the greatly increased fracture toughness of biological materials compared to synthetic materials without suc…