title: Dynamic fracture of nonglassy suspensions.
abstract: We study the dynamic fracture of thin layers of suspensions of non-Brownian rigid particles. The impact of a projectile triggers a liquid-to-solid transition and a hole opens in the layer. We show that the occurrence of fracture and the spatial and dynamic features of the cracks depend mostly on the thickness of the layer and the particle volume fraction. In contrast, the properties of the fractured material seem independent of volume fraction. Finally, we measure the velocity of the crack tip, from which we estimate an effective value of the shear modulus of the fractured material.
authors.affiliation: Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, USA.
authors.forename: Matthieu
authors.initials: M
authors.lastname: Roché
authors.affiliation: Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, USA.
authors.forename: Eglind
authors.initials: E
authors.lastname: Myftiu
authors.affiliation: Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, USA.
authors.forename: Mitchell C
authors.initials: MC
authors.lastname: Johnston
authors.affiliation: Department of Bio and Brain Engineering, KAIST, Daejeon 305-701, Republic of Korea.
authors.forename: Pilnam
authors.initials: P
authors.lastname: Kim
authors.affiliation: Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, USA.
authors.forename: Howard A
authors.initials: HA
authors.lastname: Stone
mesh_terms: D008956:Models, Chemical; D044367:Phase Transition; D013535:Suspensions / Q000737:chemistry*
chemical_list: D013535:Suspensions