Where does a cohesive granular heap break? Export

@article{citeulike:2294334, abstract = {In this paper, we consider the effect of cohesion on the stability of a granular heap and compute the maximum angle of stability of the heap as a function of the cohesion. We show that the stability is strongly affected by the dependence of the cohesion on the local pressure. In particular, this dependence is found to determine the localization of the failure plane. While for a constant adhesion force, slip occurs deep inside the heap, surface failure is obtained for a linear variation of the cohesion on the normal stress. Such a transition allows to interpret some recent experimental results on cohesive materials.}, author = {Restagno, F. and Bocquet, L. and Charlaix, E.}, citeulike-article-id = {2294334}, citeulike-linkout-0 = {http://dx.doi.org/10.1140/epje/i2004-10013-5}, day = {1}, doi = {10.1140/epje/i2004-10013-5}, journal = {The European Physical Journal E - Soft Matter}, keywords = {granular\_wet, qualifier}, month = {June}, number = {2}, pages = {177--183}, posted-at = {2008-01-27 03:59:38}, priority = {2}, title = {Where does a cohesive granular heap break?}, url = {http://dx.doi.org/10.1140/epje/i2004-10013-5}, volume = {14}, year = {2004} }

TY - JOUR ID - citeulike:2294334 L3 - citeulike-article-id:2294334 N2 - In this paper, we consider the effect of cohesion on the stability of a granular heap and compute the maximum angle of stability of the heap as a function of the cohesion. We show that the stability is strongly affected by the dependence of the cohesion on the local pressure. In particular, this dependence is found to determine the localization of the failure plane. While for a constant adhesion force, slip occurs deep inside the heap, surface failure is obtained for a linear variation of the cohesion on the normal stress. Such a transition allows to interpret some recent experimental results on cohesive materials. IS - 2 JF - The European Physical Journal E - Soft Matter EP - 183 TI - Where does a cohesive granular heap break? VL - 14 SP - 177 KW - granular_wet KW - qualifier AU - Restagno, F AU - Bocquet, L AU - Charlaix, E PY - 2004/06/01/ UR - http://dx.doi.org/10.1140/epje/i2004-10013-5 ER -