52 citations · 296 across the 17 of their papers we have counts for
5 papers · 1 filter
An Adaptive Quasi-Continuum Approach for Modeling Fracture in Networked Materials: Application to Modeling of Polymer Networks
Ahmed Ghareeb, Ahmed Elbanna
Materials with network-like microstructure, including polymers, are the backbone for many natural and human-made materials such as gels, biological tissues, metamaterials, and rubb…
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…
Crack Propagation in Bone on the Scale of Mineralized Collagen Fibrils : Role of Polymers with Sacrificial Bonds and Hidden Length
Wenyi Wang, Ahmed Elbanna
Sacrificial bonds and hidden length (SBHL) in structural molecules provide a mechanism for energy dissipation at the nanoscale. It is hypothesized that their presence leads to grea…
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…