Zobrazeno 1 - 10
of 7 674
pro vyhledávání: '"Split Hopkinson pressure bar"'
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-18 (2024)
Abstract Underground rocks are generally subjected to water erosion and dynamic disturbances. To exclude the effect of clay minerals on the water–rock interaction mechanism, clay-free artificial porous rock (APR) was used to investigate the couplin
Externí odkaz:
https://doaj.org/article/58b98eae010d424caae96808fc81cff1
Autor:
Hooman Rouhani, Ebrahim Farrokh
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-23 (2024)
Abstract This study presents a comprehensive procedure for determining, calibrating, and validating the Riedel–Hiermaier–Thoma (RHT) material model parameters for granite. The process involves collecting a comprehensive dataset of conventional me
Externí odkaz:
https://doaj.org/article/d95e024e66d14aa5bc40a7805ba3e06d
Dynamic constitutive model of Fe–Cr–Ni stainless steel based on isothermal true stress-strain curves
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 3901-3913 (2024)
Austenitic Fe–Cr–Ni stainless steel is widely used in aviation, chemistry, energy, due to its excellent properties of high-temperature performance. In this study, the splitting Hopkinson pressure bar with high-temperature system was employed to e
Externí odkaz:
https://doaj.org/article/b18e225791c542e19541d7320aa90430
Publikováno v:
International Journal of Mining Science and Technology, Vol 34, Iss 5, Pp 655-679 (2024)
Underground pumped storage power plant (UPSP) is an innovative concept for space recycling of abandoned mines. Its realization requires better understanding of the dynamic performance and durability of reservoir rock. This paper conducted ultrasonic
Externí odkaz:
https://doaj.org/article/d149684db72242ab8d21cd1598f615dd
Publikováno v:
Case Studies in Thermal Engineering, Vol 61, Iss , Pp 104910- (2024)
As underground mining operations gradually extend deeper, the conditions for orebody occurrence become increasingly complex, and various geological disasters occur frequently. Rock masses are prone to different degrees and types of damage, making it
Externí odkaz:
https://doaj.org/article/b275ba3da8a8482f81241ea0299cb985
Publikováno v:
Meitan xuebao, Vol 49, Iss 1, Pp 454-478 (2024)
Deep rock is under a complex geological environment with high geo-stress, high osmotic pressure, and strong dynamic disturbance, under the action of the three, the rock body is more prone to damage and rupture, inducing sudden water surges, seepage,
Externí odkaz:
https://doaj.org/article/2bb23f9e2ccb4512a7d42ce854fe0005
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 3, Pp 1059-1071 (2024)
Lunar base construction is a crucial component of the lunar exploration program, and considering the dynamic characteristics of lunar soil is important for moon construction. Therefore, investigating the dynamic properties of lunar soil by establishi
Externí odkaz:
https://doaj.org/article/346707285293464393f3f1fba3295da9
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 2, Pp 92-103 (2024)
In order to study the mechanical properties and energy dissipation law of pre–drilled coal samples under impact loads, the cylindrical coal samples with a diameter of 50 mm and a height of 50 mm containing axial holes were prepared. a split Hopkins
Externí odkaz:
https://doaj.org/article/2325653f69504dc4941d441cd083fae7
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 2, Pp 393-409 (2024)
For expedited transportation, vehicular tunnels are often designed as two adjacent tunnels, which frequently experience dynamic stress waves from various orientations during blasting excavation. To analyze the impact of dynamic loading orientation on
Externí odkaz:
https://doaj.org/article/544b23712b5c4d6e81492099db4e8bbf
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 2, Pp 630-644 (2024)
To reveal the dynamic mechanical characteristics of deep rocks, a series of impact tests under triaxial static stress states corresponding to depths of 300–2400 m were conducted. The results showed that both the strain rates and the stress environm
Externí odkaz:
https://doaj.org/article/303d0ce6865c4fdd843587f839f1ef3c