Results 51 to 60 of about 134,000 (295)

Research on the correction method of hydraulic fracturing in-situ stress testing based on MLP-KFold [PDF]

Geoscientific Instrumentation, Methods and Data Systems
Hydraulic fracturing serves as a critical in-situ stress testing technique, where the accurate determination of rock fracture pressure and closure pressure in fracturing intervals is essential for precise in-situ stress estimation.
Y. Liu, J. Zhou, H. Chen, J. Luo, J. Luo
doaj   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Exploration and application of in-situ stress estimation method based on core disking phenomenon of boreholes

Dizhi lixue xuebao
Objective  Rock core disking is a typical phenomenon that occurs in environments with high in-situ stress. The geometric characteristics and section shape of rock disking are related to the state of in-situ stress, and the site where this phenomenon ...
YAN Shaokun, WANG Chenghu, GAO Guiyun, LIU Jikun, DAI Xiangqian   +4 more
doaj   +1 more source

A New Methodology For In-Situ Residual Stress Measurement In MEMS Structures

, 2010
In this paper, a new approach is presented for local residual stress measurement in MEMS structures. The newly proposed approach involves incremental focused ion beam (FIB) milling of annular trenches at material surface, combined with high resolution ...
Rizzi L, Rizzi, L, Korsunsky, AM, G. MELONE, Korsunsky A. M., L. RIZZI, Korsunsky, Alexander, SEBASTIANI, MARCO, Bemporad, E, Melone, G, Melone G, BEMPORAD, Edoardo, A. M. KORSUNSKY, Bemporad E, Sebastiani, M, Korsunsky AM   +15 more
core   +1 more source

Characterization of inertial measurement units under environmental stress screening

, 2020
Nowadays, the Micro Electro-Mechanical Systems (MEMS) are widely employed in both consumer and industrial applications. One of the most important fields adopting MEMS device is the inertial measurement sector where this kind of technology is employed to ...
Signorini L., Capriglione D., Singuaroli R., Pietrosanto A., Sommella P., Patrizi G., Ciani L., Carratù M., Catelani M.   +8 more
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Evaluating the Core-Based Stress Measurement in Mining Engineering—A Critical Review of the Diametrical Core Deformation Technique

Applied Sciences
Accurate determination of in situ stress is fundamental for the safe and efficient design of underground construction projects such as tunnels, caverns, and deep mining excavations. Conventional techniques—particularly overcoring and hydraulic fracturing—
Yizhuo Li, Baokun Zhou, Hani S. Mitri, Anlin Shao   +3 more
doaj   +1 more source

Integrated Application of Three <i>In Situ</i> Stress Measurement Techniques

, 2011
The CSIRO overcoring stress relief and hydraulic fracturing methods are the most popular methods used for the measurement of in-situ stress at depth. One major advantage of the CSIRO overcoring stress relief method is that the three dimensional state of ...
Zhi Li Sui, Lan Qiao, Yuan Li
core   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source