Results 11 to 20 of about 27,661 (166)
Geofluids, 2020 The rock physics experiments and fracture toughness tests of shales from the Lower Silurian Longmaxi Formation in the Sichuan Basin in China were carried out.
Kaiyuan Liu +4 more
doaj +1 more source
Effect of Rock Fracture Filling on Mode I and II Fracture Toughness [PDF]
Analytical and Numerical Methods in Mining Engineering, 2019 This paper focuses on some fracture toughness tests performed on the pre-cracked Brazilian specimens of rock-like materials. Also the effect of rock fracture filling on the fracture toughness was considered experimentally.
حمیدرضا نجاتی +1 more
doaj +1 more source
Nihon Kikai Gakkai ronbunshu, 2019 The reactor pressure vessel is made of ferritic low alloy steel, which has fracture behaviors that include ductile to brittle transition temperature and decrease of fracture toughness in the beltline region of the reactor pressure vessel steel due to ...
Takatoshi HIROTA, Kentaro YOSHIMOTO
doaj +1 more source
Mechanism and Effect Factor of Toughening of High-Speed Train Wheels
Applied Sciences, 2023 The wheel of high-speed trains requires high strength and hardness while imposing high demands on plasticity and toughness, resulting from the needs of working conditions.
Tuosheng Jia +3 more
doaj +1 more source
Effect of Testing Method Type and Specimen Size on Mode I Fracture Toughness of Kimachi Sandstone
Journal of MMIJ, 2019 Several testing methods have been proposed for evaluating the mode I fracture toughness of rocks. Since the fracture toughness evaluated from the different testing methods is generally not compared, what is still not wellknown is the effect of the ...
Minami KATAOKA +5 more
doaj +1 more source
Journal of the Mechanical Behavior of Materials, 2020 Present work studies the effect of particle reinforcement on fracture toughness of bio-composites. The filler used has been taken as rice husk. Epoxy resin has been taken as matrix material. Composites with varying filler loading of 10, 20, 30 and 40 wt.%
Bisht Neeraj, Chandra Gope Prakash
doaj +1 more source
Experimental investigation on mode II fracture performance of old-new concrete [PDF]
Archives of Civil Engineering, 2022 The old-new concrete interface is the weakest part in the composite structure, and there are a large number of microcracks on the interface. In order to study the mode II fracture performance of the bonding surface of old-new concrete, the effect of ...
Shuang Liu +3 more
doaj +1 more source
Research on Fracture Toughness of Flattened Brazilian Disc Specimen after High Temperature
High Temperature Materials and Processes, 2016 Fracture toughness is an important parameter to study fracture characteristic of rock under external loads. Based on splitting tensile test on flattened Brazilian disc specimen of rock after high temperature, load–displacement curves of rock sample in ...
Liu Shi, Xu Jinyu, Wang Peng, Fang Xinyu
doaj +1 more source
Evaluation of shale fracture toughness based on micrometer indentation test
Petroleum, 2019 It is an important mechanical parameter for fracture toughness that affects hydraulic fracturing. Some methods such as indoor test core and logging data interpretation are commonly used to obtain fracture toughness. These methods, however, have their own
Xue Su, Ping Chen, Tianshou Ma
doaj +1 more source
Size effect of fracture characteristics for anisotropic quasi-brittle geomaterials
International Journal of Mining Science and Technology, 2023 Understanding the size effect exhibited by the fracture mechanism of anisotropic geomaterials is important for engineering practice. In this study, the anisotropic features of the nominal strength, apparent fracture toughness, effective fracture energy ...
Cunbao Li +4 more
doaj +1 more source