Results 171 to 180 of about 77,773 (362)

Restoration of human tooth enamel

open access: yesBMEMat, EarlyView.
Human tooth enamel has remarkable properties but lacks self‐repair ability. Existing restorative materials cannot fully replicate enamel's microstructure and function, resulting in low restorative efficiency. This review summarizes the formation process and characteristics of enamel, and current restorative materials and future research directions are ...
Hanlin Liu   +10 more
wiley   +1 more source

A review of multiscale numerical modeling of rock mechanics and rock engineering

open access: yesDeep Underground Science and Engineering, EarlyView.
Multiscale numerical methods of rock mechanics and rock engineering are reviewed, and the review results show that more attention should be paid to the development of an advanced constitutive model in addition to numerical techniques themselves. Abstract Rock is geometrically and mechanically multiscale in nature, and the traditional phenomenological ...
Xindong Wei, Zhe Li, Gaofeng Zhao
wiley   +1 more source

Microscopic time‐dependent mechanical behavior of shale derived from nanoindentation

open access: yesDeep Underground Science and Engineering, EarlyView.
This study conducted grid nanoindentation creep tests to systematically analyze the microscopic creep behaviors of shale. Based on the analysis of creep strain rate sensitivity, the primary mechanism of microscopic creep in shale was found to be the extension and closure of microcracks.
Cunbao Li   +4 more
wiley   +1 more source

Research on the Micromechanical Properties of Minerals and Their Interfaces in Fractured Shale Reservoirs

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT The mechanical properties of shale are key parameters affecting shale reservoirs. They influence the gas content in the shale reservoirs, expansion of hydraulic fractures, and microscopic changes in the in‐situ stress. In this paper, the shale of Longmaxi Formation in Changning area of Sichuan Basin is taken as the research object.
Mengru Hou   +4 more
wiley   +1 more source

Super impact‐resistant, high‐strength, scratch‐resistant, and foldable glass‐like film for the next generation of ultra‐thin flexible display

open access: yesFlexMat, EarlyView.
A gradient soft‐hard integrated hybrid glass material was developed to address the challenge of integrating multiple mutually exclusive properties within a single material, especially the problem that polymer is soft but not hard, while glass is hard yet brittle.
Huiyang Lu   +4 more
wiley   +1 more source

707 Effect of Surface Roughness on Nanoindentation Hardness

open access: bronze, 2001
Katsumi FUKUDA   +3 more
openalex   +2 more sources

Biodegradation, mechanical and biocompatibility evaluation of compact and porous polylactic acid after long‐term dynamic fluid immersion

open access: yesJournal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND Polylactic acid (PLA) is the most widely used thermoplastic in applications in the benefit of humans, such as biomedicine and food packaging. However, its behaviour when operating in relevant environments has not been fully investigated.
DV Portan   +7 more
wiley   +1 more source

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