Results 71 to 80 of about 26,232 (268)
Технічна інженерія, 2020 The work presents the results of scientific research on determining the radius of the zone of explosive loosening of fractured rock massifs during the explosion of a borehole charge of an explosive in it.
O.O. Frolov, M.I. Beltek
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Fractures and fracture dislocations [PDF]
The Dublin Journal of Medical Science, 1916 n ...
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Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading
Advanced Engineering Materials, EarlyView.The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
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GeoresursyOn the example of an oil deposit of the Vereisk age which is one of the deposits in the Volga-Urals, lithotypes of rocks are distinguished, characterized by a fundamentally different structure of the void space.
B. M. Osovetsky +4 more
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Volume fracturing technology of deep shale gas in southern Sichuan
Youqicang pingjia yu kaifa, 2021 Due to the deep buried depth（3 500～4 200 m）, high ground stress, high ground stress discrepancy（7 to 17 MPa）, low reservoir brittle（< 0.5）and the undeveloped natural fracture, the hydraulic fracture of Weirong deep shale gas face the problems of high ...
Wang Xingwen, Lin Yongmao, Miao Weijie
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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
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Advanced Engineering Materials, EarlyView.A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du +4 more
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Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys
Advanced Engineering Materials, EarlyView.Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak +3 more
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Advanced Engineering Materials, EarlyView.The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat +5 more
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Selection and assessment of filtration-capacitive parameters for clay reservoirs
Наука. Инновации. Технологии, 2022 Consideration is given to the selection and assessment of filter-capacitive parameters of clay reservoirs, substantiation of oil-gas-saturated thickness and permeability of reservoirs.
Ramiz Aliyevich Gasumov
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