Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Youjun Ning"'
Publikováno v:
Frontiers in Earth Science, Vol 10 (2023)
The mesoscale heterogeneity of rock determines its macroscale mechanical performance to a large extent. In this paper, a sub-block element discontinuous deformation analysis (DDA) method coupled with a statistic heterogeneity model was used to simula
Externí odkaz:
https://doaj.org/article/fd14f2816ac544ddbd4e61a62d4a17d5
Publikováno v:
Geofluids, Vol 2021 (2021)
Heterogeneity is an important characteristic that affects the mechanical behavior of rock. In the present work, a statistical rock mesoheterogeneity model based on the Weibull distribution function is introduced into the discontinuous deformation ana
Externí odkaz:
https://doaj.org/article/8fe1aaac9c954155871895ce22d0ede9
Publikováno v:
Advances in Civil Engineering, Vol 2018 (2018)
A new mining scheme by employing the induced caving mining method to exploit hanging-wall ore-body during the transition from open pit to underground mining is proposed. The basic idea is to use the mined-out area generated by the planned mining of t
Externí odkaz:
https://doaj.org/article/b6a27fb2ed4e405583195346662e0398
Publikováno v:
Engineering Analysis with Boundary Elements. 148:389-400
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9c364326345becabb67a847efb58da4
https://doi.org/10.1016/j.enganabound.2023.01.011
https://doi.org/10.1016/j.enganabound.2023.01.011
Publikováno v:
Acta Geotechnica. 17:857-876
Rock is generally regarded as a heterogeneous and anisotropic material containing massive initial defects, such as cracks, joints, and porosities. In the present work, based on the maximum tensile stress and Mohr–Coulomb criteria, the fracturing mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d86a57b0de8c261a36271fe32f13d6f
https://doi.org/10.1007/s11440-021-01252-3
https://doi.org/10.1007/s11440-021-01252-3
Publikováno v:
Engineering Analysis with Boundary Elements. 119:203-213
The Contact Theory proposed by Shi in 2015 is expected to solve the contact detection problem of discrete blocks in a perfect and universal manner. In the present paper, a contact detection algorithm for arbitrary polygonal blocks based on the Contac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51657f962f93aa0acbedc2769fd80251
https://doi.org/10.1016/j.enganabound.2020.07.017
https://doi.org/10.1016/j.enganabound.2020.07.017
Publikováno v:
Engineering Analysis with Boundary Elements. 111:154-166
Discontinuous deformation analysis (DDA) computes the mechanical behaviours of discrete deformable-block systems. It also has been used to simulate continuous rock fracturing, e.g., through the sub-block approach. In the present study, the sub-block
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::709b62ef6a7741213b36ea42417f56f9
https://doi.org/10.1016/j.enganabound.2019.11.008
https://doi.org/10.1016/j.enganabound.2019.11.008
Publikováno v:
Theoretical and Applied Fracture Mechanics. 122:103648
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08e2beb011d0bd364d44286ec88d266d
https://doi.org/10.1016/j.tafmec.2022.103648
https://doi.org/10.1016/j.tafmec.2022.103648
Publikováno v:
Engineering Fracture Mechanics. 275:108830
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0ea3d6582b8d60ec5842b763ffcc196
https://doi.org/10.1016/j.engfracmech.2022.108830
https://doi.org/10.1016/j.engfracmech.2022.108830
Publikováno v:
Journal of Energetic Materials. 38:261-282
The polymer-bonded explosive (PBX) is a kind of multi-phase composite consisting of the polymeric binder and embedded energetic particles, in which the particle volume fraction (PVF) is often highe...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef1efdf5732e38a69649e852a0b8d63c
https://doi.org/10.1080/07370652.2019.1684594
https://doi.org/10.1080/07370652.2019.1684594