Stress propagation in a concentrated colloidal suspension under shear N. S. Martys, M. Khalil, W. L. George, D. Lootens and P. Hébraud Eur. Phys. J. E, 35 3 (2012) 20 Published online: 21 March 2012 DOI: 10.1140/epje/i2012-12020-3