Results 91 to 100 of about 14,285 (229)

Research on Precise Identification of Rock Strength Based on Bolt Drilling Parameters

Energy Science &Engineering, EarlyView.
Drilling detection test platform. ABSTRACT During roadway excavation, the presence of weak interlayers and fractured rock masses significantly affects roof stability. To achieve timely and effective roadway support, it is crucial to identify and predict different rock types based on drilling signals from roof bolters.
Qiang Zhu, Sheng Biao Wang, Da Jiang Wen, Chong‐Yu Song, Kang Zhou   +4 more
wiley   +1 more source

A finite-strain hyperviscoplastic model and undrained triaxial tests of peat

, 2017
This paper presents a finite-strain hyperviscoplastic constitutive model within a thermodynamically consistent framework for peat which was categorised as a material with both rate-dependent and thermodynamic equilibrium hysteresis based on the data ...
Nagel, T., O'Kelly, B. C., Zhang, L.
core  

One-dimensional compression of a crushable sand in dry and wet conditions [PDF]

, 2015
This paper presents the results of a series of dry and wet one-dimenional compression tests on a calcareous sand from the Persian Gulf. Calcareous grains crush more easily compared to silica grains, a fact that is mainly attributed to their angular shape
Haegeman, Wim, Van Impe, Peter, Wils, Laure   +2 more
core   +1 more source

A new smooth failure criterion for concrete inspired by Lubliner's condition

Structural Concrete, EarlyView.
Abstract A new failure criterion with 10 parameters is proposed, based on Lubliner's idea of joining two Drucker–Prager cones. The novelty lies in the way of introducing deviatoric shape variation: through two Podgórski's functions. This feature allows for improving plane stress cross‐section's compatibility with experimental data.
Inez Kamińska, Aleksander Szwed
wiley   +1 more source

Extended Kelvin–Voigt Model for Simulating Thermally Accelerated Creep in Fine‐Grained Soils

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 4, Page 1843-1854, March 2026.
ABSTRACT The subsurface undergoes temperature variations in many situations due to anthropogenic and natural causes, which strongly influence the long‐term behavior of soils. These phenomena can involve temperature anomalies in the ground across distances of a few meters, as in the case of nuclear waste repositories, to distances encompassing entire ...
Giulia Capati, Diana Salciarini, Alessandro F. Rotta Loria   +2 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

The Effect of Graphene on the Fatigue Response and Failure Mechanism of Composite Materials: A Review

Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 3, Page 933-962, March 2026.
ABSTRACT This review investigates the influence of graphene on the fatigue performance of polymer‐based composites, focusing on both unreinforced matrices and fiber‐reinforced composite laminates. Graphene materials, including nanoplatelets, graphene oxide, and hybrid nanostructures, offer exceptional mechanical, electrical, and barrier properties that
João M. Parente, João Nunes‐Pereira, Abílio P. Silva, Paulo N. B. Reis   +3 more
wiley   +1 more source

Star cluster evolution in barred disc galaxies. I. Planar periodic orbits

, 2011
The dynamical evolution of stellar clusters is driven to a large extent by their environment. Several studies so far have considered the effect of tidal fields and their variations, such as, e.g., from giant molecular clouds, galactic discs, or spiral ...
Athanassoula, Belokurov, Berczik, Berczik, Berentzen, Berentzen, Binney, Contopoulos, Dehnen, Dehnen, E. Athanassoula, Ernst, Ferrers, Franx, Fukushige, Gaburov, Gieles, Gieles, Grillmair, Harfst, I. Berentzen, Just, Khalisi, Kharchenko, King, Küpper, Küpper, Küpper, Makino, Makino, Martínez-Delgado, Martínez-Delgado, Miyamoto, Odenkirchen, Pasetto, Patsis, Peng, Pfenniger, Plummer, Renaud, Skokos, Skokos, Smith, Teuben, Varghese   +44 more
core   +3 more sources

Memory of Stress History in Single and Two Surface Plasticity for Granular Soils

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 2, Page 597-612, 10 February 2026.
ABSTRACT Recent studies have identified limitations in Manzari and Dafalias' 1997 and 2004 sand plasticity models, particularly regarding one‐way unloading/reloading and ratcheting loading modes. These models are widely accepted as bounding surface models in the geotechnical engineering community; thus, concerns have arisen about a fundamental lack of ...
Alexandros L. Petalas
wiley   +1 more source

Effect of Fissure Penetration Degrees on Spalling Process and Feature of Surrounding Rock in Rectangular Tunnel Under True Triaxial Loading

Applied Sciences
To investigate the effect of fissure penetration on the spalling process and features of rectangular tunnel sidewalls, true triaxial compression tests were conducted on cubic sandstone specimens with varying fissure penetration degrees. Acoustic emission
Jie Zhang, Kang Peng, Kun Luo, Song Luo, Mao Jing   +4 more
doaj   +1 more source