Results 111 to 120 of about 8,150 (236)

Modeling proppant transport and settling in a 3D propagating fracture

open access: yesDeep Underground Science and Engineering, EarlyView.
A versatile multiphysics tool is presented for simulating the complex processes involved in hydraulic fracturing treatments. The model couples fracture opening and propagation, variable‐density slurry flow, and proppant particle transport within the multiphysics object‐oriented simulation environment framework, based on two‐phase mixture equations and ...
Robert Egert   +2 more
wiley   +1 more source

Effects of Strain Rate and Temperature on Bending Point Stress in Tangent Modulus Method

open access: yesEffects of Strain Rate and Temperature on Bending Point Stress in Tangent Modulus Method
Precise measurement of in-situ stress is important in design of underground excavations. Tangent Modulus Method (TMM) is an oriented core based method for measurement of rock stress. Two cycles of uniaxial compressive loading are carried out for rock specimen.
openaire  

Numerical research on anti‐dislocation measures design of deep‐buried tunnels in an anisotropic rock mass area

open access: yesDeep Underground Science and Engineering, EarlyView.
This paper conducts a numerical simulation study on the construction of a deep‐buried tunnel in an anisotropic stratum area. A statistical analysis of the effects of two anti‐faulting design measures, namely, a conventional design and an articulated design, is carried out, and the results demonstrate the effectiveness of the anti‐faulting structures ...
Shiqi Liu   +3 more
wiley   +1 more source

Analysis of lining force transmission coefficient and surrounding rock displacement in lined rock caverns for underground gas storage

open access: yesDeep Underground Science and Engineering, EarlyView.
This study derives an explicit expression for the lining force transmission coefficient of underground gas storage lined rock caverns (LRCs) via the complex variable function method, considering the displacement release coefficient. Taking the 1‰ tensile strain of surrounding rock as the criterion to determine lining thickness, it systematically ...
Yaohui Li, Jianping Yang, Weizhong Chen
wiley   +1 more source

Bioinspired Flexible and Stretchable Coil Structure from Ti3C2Tx MXene/AgNPs‐Functionalized Piezoelectric Nanofibers for Enhanced Energy Harvesting

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Ti3C2Tx MXene and Ag nanoparticles are embedded into piezoelectric nanofibers to form a stretchable, self‐powered coil that converts mechanical deformation into electrical energy. The device enables controllable power output during stretching and release while maintaining a compact and lightweight architecture, making it suitable for miniaturized ...
Fatemeh Mokhtari   +6 more
wiley   +1 more source

How to measure humeral medialization and upward migration after shoulder hemiarthroplasty. [PDF]

open access: yesJSES Int
Schippers P   +5 more
europepmc   +1 more source

Simultaneous Enhancement of Mechanical and Dielectric Performance of Polypropylene Composites by Introducing an External Elastic Crystal

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A hierarchical crystalline structure for recyclable polypropylene insulation in high‐voltage cables is presented. This architecture integrates rigid isotactic polypropylene spherulites with an elastic crystalline network to balance load‐bearing capacity and ductility.
Guangwei Zhang   +6 more
wiley   +1 more source

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