Force, relative-displacement, and work networks in granular materials subjected to quasistatic deformation

@article{citeulike:2722697, abstract = {To describe the heterogeneous nature of stress transmission in granular materials, the concept of the \“strong\” network consisting of contacts with large normal forces has been proposed by Radja\ï et al. [Phys. Rev. Lett. 80, 61 (1998)]. The shear stress is mainly determined by this strong network. The dual viewpoint is adopted here, by not only considering the forces at contacts, but also the deformation. It is shown that the strain increments are determined by the tangential component of the relative displacements at the contacts. A \“mobile\” network consisting of contacts with large tangential relative displacements is defined that primarily accounts for the strain increments. The investigation of the relation between the strong and the mobile networks shows that these networks are largely unrelated. An alternative network is defined that consists of contacts at which the contribution to the work input is large. It is found that this work input occurs primarily through the tangential forces and tangential relative displacements.}, author = {Kruyt, N. P. and Antony, S. J. }, citeulike-article-id = {2722697}, doi = {10.1103/PhysRevE.75.051308}, journal = {Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)}, keywords = {2007, deformation, force, grains, mobility, pre, qualifier, shear}, number = {5}, posted-at = {2008-04-26 23:33:02}, priority = {2}, publisher = {APS}, title = {Force, relative-displacement, and work networks in granular materials subjected to quasistatic deformation}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=PLEEE8000075000005051308000001\&idtype=cvips\&gifs=yes}, volume = {75}, year = {2007} }

TY - JOUR ID - citeulike:2722697 L3 - citeulike-article-id:2722697 TI - Force, relative-displacement, and work networks in granular materials subjected to quasistatic deformation JF - Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) VL - 75 IS - 5 PB - APS N2 - To describe the heterogeneous nature of stress transmission in granular materials, the concept of the “strong” network consisting of contacts with large normal forces has been proposed by Radjaï et al. [Phys. Rev. Lett. 80, 61 (1998)]. The shear stress is mainly determined by this strong network. The dual viewpoint is adopted here, by not only considering the forces at contacts, but also the deformation. It is shown that the strain increments are determined by the tangential component of the relative displacements at the contacts. A “mobile” network consisting of contacts with large tangential relative displacements is defined that primarily accounts for the strain increments. The investigation of the relation between the strong and the mobile networks shows that these networks are largely unrelated. An alternative network is defined that consists of contacts at which the contribution to the work input is large. It is found that this work input occurs primarily through the tangential forces and tangential relative displacements. KW - 2007 KW - deformation KW - force KW - grains KW - mobility KW - pre KW - qualifier KW - shear AU - Kruyt, NP AU - Antony, SJ PY - 2007/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PLEEE8000075000005051308000001&idtype=cvips&gifs=yes ER -