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
Green Mild Acid Treatment of Recycled Concrete Aggregates: Concentration Thresholds for Mortar Removal While Avoiding Degradation of Original Limestone Aggregate and Concrete. [PDF]
Zhang S, Zhang Y.
europepmc +1 more source
Curvature‐Programming Bending Rigidity in 2D Materials through Nano‐Architected Meta‐Atoms
2D materials, such as graphene and hBN, exhibit ultra‐low bending stiffness due to their monoplanar nanostructural configuration, which limits the mechanical robustness for a range of engineering applications. We propose to enhance the bending stiffness by introducing programmed curvature in the geometry of 2D materials without any additional mass ...
Kumar Saumya +2 more
wiley +1 more source
Repeatability of Magnetic Resonance Elastography-Derived Mechanical Parameters in Intracranial Meningiomas. [PDF]
Aunan-Diop JS +9 more
europepmc +1 more source
A Thermodynamic Framework for Turing‐Type Instabilities in Porous Media: Part I Theory
Abstract Pattern formation in geological materials is commonly described using analogies to Turing‐type reaction–diffusion systems, yet a unifying thermodynamic explanation remains elusive. Here we develop a multiscale, thermodynamically consistent framework for pattern‐forming instabilities in porous media undergoing coupled thermo–hydro–mechanical ...
Klaus Regenauer‐Lieb +5 more
wiley +1 more source
Abstract In order to predict future performance of subsurface fluid reservoirs under possible operating scenarios, a dynamic, porous‐medium flow simulation model must be tuned to include representative properties of the reservoir. Estimating subsurface reservoir properties given remotely sensed or borehole‐based observations typically involves finding ...
Zhen Zhang, Xuebin Zhao, Andrew Curtis
wiley +1 more source
Gradient regularity for widely degenerate elliptic partial differential equations. [PDF]
Strunk M.
europepmc +1 more source
Minimization of thermal deformation in crystal optics for high‐repetition‐rate FEL
Thermal deformation in X‐ray crystal optics in high‐repetition‐rate X‐ray free‐electron lasers can be effectively reduced by cryogenic cooling with liquid nitrogen, and possibly by second‐order correction via focusing optics.Minimizing thermal deformation in X‐ray crystal optics is crucial for preserving coherence and wavefront in high‐repetition‐rate ...
Lin Zhang +4 more
wiley +1 more source
Forward and inverse optimality problems of bone adaptation at the homogenised RVE level. [PDF]
Zysset PK.
europepmc +1 more source

