Publications de Seyyedmaalek Momeni

Hydraulic Fracture Propagation Across Pre-existing Discontinuities in an Anisotropic Rock: Experimental Evidence and Insights from Scaling Relations

Andreas Möri, Brice Tanguy Alphonse Lecampion, Seyyedmaalek Momeni

Laboratory experiments have been conducted on anisotropic slate specimens to study the behavior of hydraulic fractures (HFs) when encountering discontinuities. The experiments target specific propagation regimes, including toughness-dominated, lag-viscosit ...

Springer Science and Business Media LLC2025

Advanced Acoustic Emission-based SHM for Concrete Structures: Real-Time, High-Precision Imaging of Crack Geometry and Damage Source-type Using Moment Tensor Inversion

Brice Tanguy Alphonse Lecampion, Seyyedmaalek Momeni

In this paper, we introduce a novel automated and high-precision acoustic emission (AE) monitoring algorithm and the software SIMORGH, which is suitable for structural health monitoring (SHM) of civil structures. Initially developed for laboratory-scale hy ...

NDT.net2024

Measuring hydraulic fracture propagation and closure in sandstone

Brice Tanguy Alphonse Lecampion, Mohsen Talebkeikhah, Seyyedmaalek Momeni

This study investigates experimentally hydraulic fracture propagation, arrest and closure in permeable rocks.Through a controlled laboratory experiment on a Molasse sandstone block under a true triaxial state of stress, hydraulic fracture propagation and c ...

American Rock Mechanics Association (ARMA)2024

Rock Anisotropy Promotes Hydraulic Fracture Containment at Depth

Brice Tanguy Alphonse Lecampion, Fatima-Ezzahra Moukhtari, Carlo Peruzzo, Seyyedmaalek Momeni, Guanyi Lu

2024

Automatic and high-precision acoustic emission-based structural health monitoring of concrete structures

Brice Tanguy Alphonse Lecampion, Seyyedmaalek Momeni

Acoustic emission (AE) monitoring is a useful technique to monitor the health of a structure continuously, helping to prevent potential failure. AE are elastic waves produced and emitted during fracture processes inside a material and are recorded by senso ...

DESTech publications inc.2023

Dataset for manuscript: Rock anisotropy promotes hydraulic fracture containment at depth

Brice Tanguy Alphonse Lecampion, Fatima-Ezzahra Moukhtari, Carlo Peruzzo, Seyyedmaalek Momeni, Guanyi Lu

This is the experimental data used in manuscript: "Rock anisotropy promotes hydraulic fracture containment at depth". This data set has 5 folders: K1, T2, M3 and M4 contain the raw data collected by active acoustic monitoring system and various pumps and t ...

EPFL Infoscience2023

Automatic and high-precision microseismic monitoring of progressive failure prior, during, and after tunnel excavation

Brice Tanguy Alphonse Lecampion, Christophe Nussbaum, Seyyedmaalek Momeni

Acoustic emission (AE) monitoring is commonly used to inspect the health of a structure continuously. During fracture processes elastic waves of AE are created and emitted, and sensors can capture these waves. The acquired signals can be processed to track ...

2023

The influence of roughness on experimental fault mechanical behaviour and associated microseismicity

Brice Tanguy Alphonse Lecampion, Marie Estelle Solange Violay, Barnaby Padraig Fryer, François Xavier Thibault Passelègue, Carolina Giorgetti, Seyyedmaalek Momeni

Fault surfaces are rough at all scales, this significantly affecting fault-slip behaviour. However, roughness is only occasionally considered experimentally and then often in experiments imposing a low slip velocity, corresponding to the initiation stage o ...

2022

Experimental Investigation of Hydraulic Fracture Closure in a Porous Sandstone

Brice Tanguy Alphonse Lecampion, Mohsen Talebkeikhah, Seyyedmaalek Momeni, Guanyi Lu

Depending on the type of fracture propagation regime when the injection stops, the closure of the fracture may occur exactly after the injection ceases, in the case where the fracturing process is dominated by fracture energy, or the fracture propagate for ...

Onepetro2022

Long-term triggered seismicity on the Mosha fault by Damavand volcano, Iran: Implications on the seismic hazard of Tehran metropolis

Seyyedmaalek Momeni

The seismic history of the Mosha fault, the largest and most active fault of Eastern Tehran metropolis, and its relation to the Damavand active volcano, the highest mountain in the Middle East, is investigated. We deduce that the central Mosha, near the Da ...

2022

Experimental investigation of hydraulic fracture growth in an anisotropic rock with pre-existing discontinuities under different propagation regimes

Brice Tanguy Alphonse Lecampion, Seyyedmaalek Momeni, Guanyi Lu

Laboratory experiments have been carried out to investigate the growth of hydraulic fracture (HF) in an anisotropic rock with pre-existing discontinuities such as bedding planes and veins. The experiments are designed in light of scaling relationships that ...

2022

Combining active and passive acoustic methods to image hydraulic fracture growth in laboratory experiments

Brice Tanguy Alphonse Lecampion, Dong Liu, Seyyedmaalek Momeni

We combine active and passive acoustic measurements to improve the spatio- temporal imaging of hydraulic fracture growth performed under true triaxial confinement in the laboratory. 64 active piezo-electric transducers (54 P waves, 10 S waves) work in sour ...

IOP2021