Shear-induced crystallization in jammed systems

@article{citeulike:2883583, abstract = {Simulations are used to address the effects of oscillating shear strain on jammed systems composed of spherical particles. The simulations show that shear oscillations with amplitudes of more than a few percent lead to substantial crystallization of the system. To ensure that the conclusions are independent of the simulation methodology, a range of simulations are carried out that use both molecular dynamics and athermal dynamics methods, soft and hard potentials, potentials with and without attractive forces, and systems with and without surrounding walls. The extent of crystallization is monitored primarily by the Q6 order parameter, but also in some simulations by the potential energy and the radial distribution function, and by direct visual inspection. A mechanism is proposed for shear-induced crystallization of jammed systems, based on fold catastrophes of the free-energy landscape.}, author = {Duff, Nathan and Lacks, Daniel J. }, citeulike-article-id = {2883583}, doi = {10.1103/PhysRevE.75.031501}, journal = {Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)}, keywords = {2007, crystalline, jamming, pre, shear, simulation, strucutre, system}, number = {3}, posted-at = {2008-06-11 19:56:09}, priority = {2}, publisher = {APS}, title = {Shear-induced crystallization in jammed systems}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=PLEEE8000075000003031501000001\&idtype=cvips\&gifs=yes}, volume = {75}, year = {2007} }

TY - JOUR ID - citeulike:2883583 L3 - citeulike-article-id:2883583 TI - Shear-induced crystallization in jammed systems JF - Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) VL - 75 IS - 3 PB - APS N2 - Simulations are used to address the effects of oscillating shear strain on jammed systems composed of spherical particles. The simulations show that shear oscillations with amplitudes of more than a few percent lead to substantial crystallization of the system. To ensure that the conclusions are independent of the simulation methodology, a range of simulations are carried out that use both molecular dynamics and athermal dynamics methods, soft and hard potentials, potentials with and without attractive forces, and systems with and without surrounding walls. The extent of crystallization is monitored primarily by the Q6 order parameter, but also in some simulations by the potential energy and the radial distribution function, and by direct visual inspection. A mechanism is proposed for shear-induced crystallization of jammed systems, based on fold catastrophes of the free-energy landscape. KW - 2007 KW - crystalline KW - jamming KW - pre KW - shear KW - simulation KW - strucutre KW - system AU - Duff, Nathan AU - Lacks, Daniel PY - 2007/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PLEEE8000075000003031501000001&idtype=cvips&gifs=yes ER -