Hardening–Softening Constitutive Model of Hard Brittle Rocks Considering Dilatant Effects and Safety Evaluation Index
Sign Up to like & getrecommendations! Published in 2019 at "Acta Mechanica Solida Sinica"
DOI: 10.1007/s10338-019-00108-4
Abstract: The damage and even failure of hard brittle rocks has been the most important challenge facing the safety of construction of deep engineering works, so the key to solving this problem is the recognition of… read more here.
Keywords: brittle; brittle rocks; strength; model ... See more keywords
Grinding of hard and brittle ceramic coatings: Force analysis
Sign Up to like & getrecommendations! Published in 2020 at "Journal of The European Ceramic Society"
DOI: 10.1016/j.jeurceramsoc.2019.12.058
Abstract: Abstract In this work, a grinding force model has been proposed and a correlation between the analytical model and the experimental grinding forces obtained during finishing of plasma sprayed ceramic coatings has been investigated. Thermally… read more here.
Keywords: grinding hard; fracture; brittle ceramic; ceramic coatings ... See more keywords
An ultrasonic vibration-assisted system development for inner-diameter sawing hard and brittle material
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Materials Processing Technology"
DOI: 10.1016/j.jmatprotec.2021.117155
Abstract: Abstract The inner-diameter (ID) sawing technology is dominant in small-lot and multi-specification sawing process of hard and brittle materials. However, the surface quality obtained in the conventional ID sawing cannot meet practical requirements. In this… read more here.
Keywords: system; inner diameter; vibration; technology ... See more keywords
Experimental investigation on rock structure and chemical properties of hard brittle shale under different drilling fluids
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2019.106185
Abstract: Abstract The physical and chemical properties of hard brittle shale and its mechanical properties under different drilling fluid systems are of great practical significance to the in-depth study of shale borehole stability. Microscopic geological characteristics… read more here.
Keywords: drilling fluid; different drilling; brittle shale; drilling ... See more keywords
Experimental Study on the Adaptability of Plugging Drilling Fluids to Wellbore Stability in Hard Brittle Shale Formations
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c04624
Abstract: The problem of wellbore stability in hard brittle shale formations is an important research topic in the exploration and development of shale gas. To solve this problem, the adaptability of the plugging drilling fluid to… read more here.
Keywords: brittle shale; hard brittle; wellbore stability; plugging drilling ... See more keywords
Femtosecond laser hybrid processing strategy of transparent hard and brittle materials
Sign Up to like & getrecommendations! Published in 2022 at "Frontiers in Chemistry"
DOI: 10.3389/fchem.2022.1082738
Abstract: With high hardness, high thermal stability, chemical inertness and excellent optoelectronic properties, transparent hard and brittle materials have drawn significant attentions in frontier domains such as aerospace, photoelectric detection, and high-intensity lasers. Femtosecond laser processing… read more here.
Keywords: femtosecond laser; processing; brittle materials; hard brittle ... See more keywords
Insight on the regulation mechanism of the nanochannels in hard and brittle materials induced by sparially shaped femtosecond laser
Sign Up to like & getrecommendations! Published in 2022 at "Frontiers in Chemistry"
DOI: 10.3389/fchem.2022.973570
Abstract: The efficient fabrication of nanochannels on hard and brittle materials is a difficult task in the field of micro and nano processing. We have realized nanochannel arrays on silica with characteristic scales varying from 50–230… read more here.
Keywords: femtosecond; characteristic scales; laser; brittle materials ... See more keywords