We develop a method of poroelastic relaxation indentation (PRI) to characterize thin layers of gels. The solution to the time-dependent boundary-value problem is obtained in a remarkably simple form, so that the force-relaxation curve obtained by indenting a gel readily determines all the poroelastic constants of the gel—the shear modulus, Poisson’s ratio, and the effective diffusivity. The met...

Introduction: Hydrocephalus (HC) is a disease characterized by obstruction of cerebrospinal fluid (CSF) flow in either the lateral ventricles (noncommunicating) or subarachnoid space (communicating), resulting in an increase in ventricular size and a subsequent increase in intracranial pressure (ICP). Currently, magnetic resonance imaging or computed tomography assist in diagnosis, but these im...

The most commonly used prediction techniques to study the steady state behaviour of coupled acousticporoelastic problems are based on the Finite Element Method. However, due to the large computational load when frequency increases, these methods are restricted to low frequency problems. Recently, a Wave Based Method was developed to tackle this type of problems in a more efficient way. The meth...

In this work, phase-field modeling of hydraulic fractures in porous media is extended towards a Global–Local approach. Therein, the failure behavior solely analyzed (small) local domain. surrounding medium, simplified and linearized system equations solved. Both domains are coupled with Robin-type interface conditions. The inside domain allowed to propagate consequently, both subdomains change ...

Abstract Biot's equations describe the physics of hydromechanically coupled systems establishing widely recognized theory poroelasticity. This has a broad range applications in Earth and biological sciences as well engineering. The numerical solution is challenging because wave propagation fluid pressure diffusion processes occur simultaneously but feature very different characteristic time sca...