Results 111 to 120 of about 7,208 (294)

Critical expansion points: Mechanical signs of surrounding rock instability

Deep Underground Science and Engineering, EarlyView.
This study proposes the Rock Bearing‐Expansion Model (RockBEM) with critical expansion points (CEPs) to quantify post‐peak damage stages in deep‐buried rock masses via plane strain compression test (PSCT). CEP hysteresis&interval ratios reveal bearing performance dynamics and failure severity, advancing mechanistic insights into deep underground rock ...
Jiaqi Wen, Chang Deng, Haijun Wang, Lei Tang, Jihong Yu   +4 more
wiley   +1 more source

Application of the continuum damage mechanics model in the three point bending test of Ti-6Al-4V titanium alloy specimens [PDF]

, 2013
One of the most important and challenging activities in the simulation of the mechanical behaviour of materials is the prediction of the failure phenomena.
Allahverdizadeh, N., Giglio, M., Manes, A.   +2 more
core  

A rock brittleness index based on the postpeak energy release rate and damage surface characteristics for brittle hard rock

Deep Underground Science and Engineering, EarlyView.
This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang, Zaobao Liu, Jing Xue, Bo Lu, Wei Zeng, Dengke Zhang   +5 more
wiley   +1 more source

Triaxial vs. Spherical Dark Matter Halo Profiles

, 2006
When analysing dark matter halos forming in cosmological N-body simulations it is common practice to obtain the density profile utilizing spherical shells. However, it is also known that the systems under investigation are far from spherical symmetry and
Alexander Knebe, de Blok, Hansen, Volkmar Wießner   +3 more
core   +2 more sources

An MCMC Fitting Method for Triaxial Dark Matter Haloes [PDF]

, 2008
Measuring the 3D distribution of mass on galaxy cluster scales is a crucial test of the LCDM model, providing constraints on the behaviour of dark matter. Recent work investigating mass distributions of individual galaxy clusters (e.g.
Bahcall, Bartelmann, Bett, Broadhurst, Canizares, Clowe, Corless, Corless, Czoske, Dahle, Dodelson, Feroz, Fort, Gavazzi, Gavazzi, Hoekstra, Jing, Jullo, King, King, Kneib, Leonard, Lewis, Limousin, Lindsay J. King, Lokas, MacKay, Marshall, Navarro, Oguri, Oguri, Schneider, Schramm, Seitz, Shaw, Sheth, Virginia L. Corless   +36 more
core   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

Analytical stress solution framework for lined compressed air energy storage chambers and its application to safe burial depth determination and supporting effectiveness evaluation

Deep Underground Science and Engineering, EarlyView.
An analytical framework delivers a closed‐form stress solution for lined compressed air energy storage chambers, enabling the determination of the minimum safe burial depth. The solution quantitatively evaluates lining support effectiveness, offering a reliable tool for chamber design and optimization.
Zeyuan Sun, Cheng Zhao, Jinquan Xing, Qinyuan Luo   +3 more
wiley   +1 more source

Linear Drucker-Prager yield criterion calibration for polypropylene under multiaxial load

eXPRESS Polymer Letters
This study focuses on calibrating the linear Drucker-Prager yield criterion for polypropylene under multiaxial loading conditions, using the Arcana fixture to achieve a wide range of triaxiality states.
Adam Kasprzak
doaj   +1 more source

Influence of Failure Strain of Different Aluminium Alloys on Dynamic Problems

Engineering Transactions, 2014
In this work an experimental-numerical methodology is devised for analyzing ductile fracture of two aluminum alloys under different values of stress triaxiality (0.2 ≤ η ≤ 1.2) and Lode parameter (−1 ≤ μ ≤ 0).
Marcos RODRIGUEZ-MILL´AN, Alvaro VAZ-ROMERO, Jose Antonio RODRIGUEZ-MARTINEZ, Alexis RUSINEK, Angel ARIAS   +4 more
doaj   +1 more source

Projection effects in cluster mass estimates : the case of MS2137

, 2005
We revisit the mass properties of the lensing cluster of galaxies MS2137-23 and assess the mutual agreement between cluster mass estimates based on lensing, X-rays and stellar dynamics.
Allen, Allen, Arabadjis, Bartelmann, Bartelmann, Bartelmann, Binney, Bolzonella, Broadhurst, Bullock, Buote, Cen, Chae, Chae, Clowe, de Blok, De Filippis, Dressler, Eke, Fort, Gavazzi, Gavazzi, Geiger, Gentile, Ghigna, Hamana, Hammer, Hennawi, Hernquist, Hoekstra, Hunter, Jaffe, Jing, Jing, Kaiser, Kazantzidis, Kelson, King, Kneib, Koopmans, Kuijken, Mellier, Merritt, Metzler, Miralda-Escude, Miralda-Escudé, Moore, Navarro, Navarro, Oguri, Oguri, Osipkov, Peng, Piffaretti, Qian, R. Gavazzi, Reblinsky, Romanowsky, Rusin, Salucci, Sand, Sand, Schneider, Smith, Stoehr, Tereno, Treu, van der Marel, Wu, Wyithe   +69 more
core   +3 more sources