Results 81 to 90 of about 71,166 (345)

Shearing tests with continuously increasing normal stress [PDF]

, 2006
In the conventional shearing tests the normal force or the normal stiffness are kept constant during the experiment. Sliding under constant normal load occurs in slopes if the environment is not changing during the process.
Ván, Péter, Vásárhelyi, Balázs
core   +1 more source

Search for the Skyrme-Hartree-Fock Solutions for Chiral Rotation in N=75 Isotones

, 2005
A search for the self-consistent solutions for the chiral rotational bands in the N=75 isotones, 130Cs, 132La, 134Pr and 136Pm is performed within the Skyrme-Hartree-Fock cranking approach using SKM* and SLy4 parametrizations.
Dobaczewski, J., Dudek, J., Olbratowski, P.   +2 more
core   +3 more sources

Experimental study on dynamic behavior analysis of coal and its acoustic emission response characteristics under impact failure

Deep Underground Science and Engineering, EarlyView.
Based on acoustic emission response characteristics, it can be more accurate to identify the damage evolution process of coal under the combined dynamic and static loads, reveal the moment corresponding to coal damage, and identify the characteristics of coal failure. The research results are conducive to the further use of acoustic emission monitoring
Wei Zhang, Huijian Fu, Yingke Liu, Zhaoxi Long, Yang Liu, Tengrui Yang, Yanbo Sun, Mingjun Jiang, Xiaojiang Wen, Yue Niu, Ruixi Cheng   +10 more
wiley   +1 more source

Application and comparison of multistage triaxial compression test procedures on reconstituted Ankara clay [PDF]

E3S Web of Conferences
The ability to conduct conventional triaxial compression tests on multiple identical specimens is restricted by available sample quantity, sample homogeneity, as well as testing duration.
Vakilinezhad Amirahmad, Toker Nabi Kartal   +1 more
doaj   +1 more source

Ellipsoidal configurations in the de Sitter spacetime

, 2006
The cosmological constant $\Lambda$ modifies certain properties of large astrophysical rotating configurations with ellipsoidal geometries, provided the objects are not too compact.
A Balaguera-Antolínez, Amarzguioui M Elgaroy O Mota D F Multamaki T, Bahcall N A, Balaguera-Antolinez A, Barrow J D, Binney J, Binney J, Biviano A, Chandrasekhar S, D F Mota, de Zeeuw P T, Iorio L, Jaaniste J, Kondrat'ev B P, M Nowakowski, Manera M Mota D F, Ninggeli B, Paz D J Lambas D G Padilla N Merchan M, Perea J, Rines K Diaferio A, Teerikorpi P Chernin A D Baryshev Yu V, van den Bergh S, Wagner S J, West M J, Wetterich C   +24 more
core   +1 more source

Microscopic time‐dependent mechanical behavior of shale derived from nanoindentation

Deep Underground Science and Engineering, EarlyView.
This study conducted grid nanoindentation creep tests to systematically analyze the microscopic creep behaviors of shale. Based on the analysis of creep strain rate sensitivity, the primary mechanism of microscopic creep in shale was found to be the extension and closure of microcracks.
Cunbao Li, Shilei Zhong, Heping Xie, Changtai Zhou, Jianjun Hu   +4 more
wiley   +1 more source

Unveiling the three-dimensional structure of galaxy clusters: resolving the discrepancy between X-ray and lensing masses

, 2010
[Abridged] We present the first determination of the intrinsic three-dimensional shapes and the physical parameters of both dark matter (DM) and intra-cluster medium (ICM) in a triaxial galaxy cluster.
Andersson, Andrea Morandi, Arabadjis, Arnaud, Binney, Bradač, Clowe, Dahle, De Filippis, Ebeling, Gastaldello, Gnedin, Inagaki, Jing, Kaastra, Kelson, Kristian Pedersen, Lee, Lee, Lee, Lewis, Limousin, Makino, Marceau Limousin, Merritt, Moore, Navarro, Oguri, Peng, Riemer-Sørensen, Sand, Sand, Sand, Sarazin, Smith, Sommer-Larsen, Suto, Taylor, Tyson, Vikhlinin, Voevodkin, Yoshida, Zappacosta   +42 more
core   +3 more sources

A new slurry-based method of preparation of specimens of sand containing fines [PDF]

, 2007
A new method of specimen reconstitution is presented that is appropriate for element testing of sands containing either plastic or nonplastic fines. The method allows reconstitution of homogeneous, saturated specimens of sands containing fines whose ...
Carraro, JAH, Prezzi, M
core   +1 more source

Stress analysis of crack characteristic of anthracite under dynamic loading

Deep Underground Science and Engineering, EarlyView.
In this article, the dynamic compression test of anthracite under five strain rates is carried out, the evolution law of three kinds of crack characteristic stress is analyzed, and a prediction model of the crack characteristic stress threshold considering the strain rate effect is established. Then, the rationality of crack characteristic stress under
Yun Bai, Feng Gao, Ning Luo, Zhizhen Zhang, Yue Niu, Shanjie Su   +5 more
wiley   +1 more source

A Constitutive Model for Saturated Gravelly Sand Based on Higher-Order Dilatancy Equation

Advances in Civil Engineering, 2020
A standard stress path triaxial test system was applied to carry out conventional triaxial shearing tests for gravelly sands under confining pressures ranging from 50 kPa to 400 kPa at the initial relative densities of 0.15, 0.35, 0.55, and 0.75 ...
Dongjie Zhang, Fei Luo, Zhanyuan Zhu, Bin Luo, Jing Li, Zihan Xu, Jiaming Liu   +6 more
doaj   +1 more source