Wave Propagation Analysis in the Homogenized Second-Gradient Medium: A Direct and Inverse Approach. [PDF]
Al Fayadh F, Lakiss H, Reda H.
europepmc +1 more source
Wave Propagation in Non‐Uniform Media by Linear Expansion of the Refraction Law
ABSTRACT The propagation of mechanical waves in an unbounded, non‐uniform medium can be described by using curvilinear coordinates centered at the source position. The Frenet coordinate system, with origin on a point riding a wave, is used as a basis for the curvilinear coordinates.
Alessandro Bassetti, Oskar Bschorr
wiley +1 more source
Toward Dynamic Phase‐Field Fracture at Finite Strains
ABSTRACT We investigate the evolution of dynamic phase‐field fracture in the finite‐strain setting, extending our previous work in the small‐strain viscoelastodynamic regime. The elastodynamic equations are coupled with a dissipative damage evolution for the phase‐field variable z$z$.
Sven Tornquist +4 more
wiley +1 more source
Investigating the Propagation Mechanisms and Visualization of Airwaves in Marine CSEM Using the Fictitious Wave Domain Method. [PDF]
Lu J, Peng D.
europepmc +1 more source
Peridynamics with a Cube‐Shaped Neighborhood
ABSTRACT This paper investigates the effects of cube‐shaped neighborhoods in peridynamic theory as an alternative to the traditional spherical neighborhoods. We examine how different neighborhood geometries influence the behavior of various peridynamic formulations, including bond‐based models, state‐based formulations, and correspondence methods.
Kai Partmann +3 more
wiley +1 more source
Quantitative Analysis of Phase Response Enhancement in Distributed Acoustic Sensing Systems Using Helical Fiber Winding Technology. [PDF]
Duan Y +5 more
europepmc +1 more source
Variational Modeling of Porosity Waves
ABSTRACT Mathematical models for finite‐strain poroelasticity in an Eulerian formulation are studied by constructing their energy‐variational structure, which gives rise to a class of saddle‐point problems. This problem is discretized using an incremental time‐stepping scheme and a mixed finite element approach, resulting in a monolithic, structure ...
Andrea Zafferi, Dirk Peschka
wiley +1 more source
Dynamic similarity framework and governing criteria for saturated rock masses under combined static and dynamic loading. [PDF]
Nan T +5 more
europepmc +1 more source
On Wind Directions Estimated by Nacelle Lidar Under Different Reconstruction Methods
ABSTRACT The wind direction is closely linked to the power performance and structural loads of wind turbines. Conventional nacelle‐mounted vanes or sonic anemometers face errors associated with airflow distortions caused by turbine blades. Nacelle‐mounted lidar systems offer line‐of‐sight speed measurements from multiple positions ahead of the rotor ...
Feng Guo +7 more
wiley +1 more source

