Fluid-induced rupture experiment on Fontainebleau sandstone: Premonitory activity, rupture propagation, and aftershocks

Microstructure of Shear Zones in Fontainebleau Sandstone

Failure mechanisms and surface roughness statistics of fractured Fontainebleau sandstone.

In an effort to investigate the link between failure mechanisms and the geometry of fractures of compacted grains materials, a detailed statistical analysis of the surfaces of fractured Fontainebleau sandstones has been achieved. The roughness of samples of different widths W is shown to be self-affine with an exponent zeta=0.46+/-0.05 over a range of length scales ranging from the grain size d...

Cocaine-induced splenic rupture

Splenic rupture is a rare but serious complication from cocaine abuse. Given the ubiquitous prevalence of abuse and the potential for death from intraperitoneal bleeding, the prompt diagnosis and treatment of cocaine-induced disease including splenic rupture is essential. The management for splenic rupture from traumatic and atraumatic etiology has shifted from emergent laparotomy and splenecto...

The Computational Fluid Dynamics Rupture Challenge 2013—Phase I: prediction of rupture status in intracranial aneurysms.

BACKGROUND AND PURPOSE Rupture risk assessment for intracranial aneurysms remains challenging, and risk factors, including wall shear stress, are discussed controversially. The primary purpose of the presented challenge was to determine how consistently aneurysm rupture status and rupture site could be identified on the basis of computational fluid dynamics. MATERIALS AND METHODS Two geometri...

Entropy-driven instability and rupture of fluid membranes.

A computer simulation is used to investigate hole formation in a model membrane. The model parameters are the stress applied to the membrane, and the edge energy per unit length along the hole boundary (edge tension). Even at zero stress, the membrane has an entropically driven instability against hole formation. Within the model, the minimum edge tension required for the stability of a typical...