TY - JOUR
T1 - Sphere impact and penetration into wet sand
AU - Marston, J. O.
AU - Vakarelski, I. U.
AU - Thoroddsen, S. T.
PY - 2012/8/7
Y1 - 2012/8/7
N2 - We present experimental results for the penetration of a solid sphere when released onto wet sand. We show, by measuring the final penetration depth, that the cohesion induced by the water can result in either a deeper or shallower penetration for a given release height compared to dry granular material. Thus the presence of water can either lubricate or stiffen the granular material. By assuming the shear rate is proportional to the impact velocity and using the depth-averaged stopping force in calculating the shear stress, we derive effective viscosities for the wet granular materials.
AB - We present experimental results for the penetration of a solid sphere when released onto wet sand. We show, by measuring the final penetration depth, that the cohesion induced by the water can result in either a deeper or shallower penetration for a given release height compared to dry granular material. Thus the presence of water can either lubricate or stiffen the granular material. By assuming the shear rate is proportional to the impact velocity and using the depth-averaged stopping force in calculating the shear stress, we derive effective viscosities for the wet granular materials.
UR - http://www.scopus.com/inward/record.url?scp=84864985724&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.86.020301
DO - 10.1103/PhysRevE.86.020301
M3 - Article
AN - SCOPUS:84864985724
SN - 1539-3755
VL - 86
JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
IS - 2
M1 - 020301
ER -