Results 101 to 110 of about 7,208 (294)

Shape evolution in Yttrium and Niobium neutron-rich isotopes [PDF]

, 2011
The isotopic evolution of the ground-state nuclear shapes and the systematics of one-quasiproton configurations are studied in neutron-rich odd-A Yttrium and Niobium isotopes.
Robledo, L. M., Rodriguez-Guzman, R., Sarriguren, P.   +2 more
core   +3 more sources

A review on rockburst prediction and prevention to shape an ontology‐based framework for better decision‐making for underground excavations

Deep Underground Science and Engineering, EarlyView.
A scientometric analysis of 2449 journal articles and a comprehensive review of 336 papers were conducted, discussing and identifying challenges and research gaps in rockburst prediction and prevention and proposing an ontology‐based framework for better decision‐making in underground excavations. Abstract With underground engineering projects becoming
Hongchuan Yan, Haijiang Li, Hongqiang Xie, Mingli Xiao, Jianliang Pei, Huaizhong Liu, Jiangda He   +6 more
wiley   +1 more source

Considerations in selecting laboratory scale test specimens for evaluation of fracture toughness [PDF]

, 2013
The assessment of defects in large steel structures requires a trustworthy evaluation of the material’s toughness. This toughness is not only a material property but is also influenced by the loading conditions and geometry; the so-called constraint. The
De Waele, Wim, Denys, Rudi, Hertelé, Stijn, Van Minnebruggen, Koen, Verstraete, Matthias   +4 more
core   +1 more source

Generalized Matsuoka–Nakai criterion considering hydrostatic pressure dependence in the brittle–ductile region

Deep Underground Science and Engineering, EarlyView.
Three sets of strength data were selected, including hydrostatic pressure independent within the brittle region (HPI‐B), hydrostatic pressure dependent within the brittle region (HPD‐B), and hydrostatic pressure dependent within the brittle–ductile region (HPD‐BD). For HPI type, the failure envelope within the deviatoric plane remains constant.
Jiacun Liu, Junjie Xiao, Dongping Liu, Ying Xu   +3 more
wiley   +1 more source

Strain Rate-Dependent Constitutive and Low Stress Triaxiality Fracture Behavior Investigation of 6005 Al Alloy

Advances in Materials Science and Engineering, 2018
In order to study the dynamic and fracture behavior of 6005 aluminum alloy at different strain rates and stress states, various tests (tensile tests at different strain rates and tensile shearing tests at five stress states) are conducted by Mechanical ...
Yong Peng, Xuanzhen Chen, Shan Peng, Chao Chen, Jiahao Li, Guowei Liu   +5 more
doaj   +1 more source

Deformation and Failure of OFHC Copper under high strain rate shear compression [PDF]

, 2017
Hat-shaped specimen geometries were developed to generate high strain, high-strain-rates deformation under prescribed conditions. These geometries offer also the possibility to investigate the occurrence of ductile rupture under low or negative stress ...
Bonora, Nicola, Hörnqvist, Magnus, Iannitti, Gianluca, Peresechino, Italo, Ruggiero, Andrew, Testa, Gabriel   +5 more
core   +1 more source

Permeability of granite from a shallow buried mountain pipe gallery tunnel under unloading confining pressure

Deep Underground Science and Engineering, EarlyView.
Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang, Yonghua Ye, Jianping Zuo, Baojiang Han, Weigang Jiao   +4 more
wiley   +1 more source

Fracture Initiation in Aluminum Alloys Under Multiaxial Loading at Various Low Strain Rates

Metals
The initiation of ductile fractures in medium-strength AW5754 and high-strength AW6082 aluminum alloys at different quasi-static strain rates and under multiaxial stress states was investigated through a series of tensile tests using various specimen ...
Mehmet Haskul, Eray Arslan
doaj   +1 more source

Ductile fracture simulations using a multi-surface coupled damage-plasticity model [PDF]

, 2017
In this paper, an isotropic porous metal plasticity model accounting for both void growth by diffuse plastic deformation and void ‘coalescence’ by localization of plastic flow in the inter-void ligaments is presented.
Keralavarma, S. M., Reddi, D.
core  

The Spin-Orbit Evolution of GJ 667C System: The Effect of Composition and Other Planet's Perturbations [PDF]

, 2016
Potentially habitable planets within the habitable zone of M-dwarfs are affected by tidal interaction. We studied the tidal evolution in GJ 667C using a numerical code we call TIDEV.
Cuartas-Restrepo, P., Melita, M., Miloni, O., Portilla, B., Sucerquia, M., Zuluaga, J.   +5 more
core   +3 more sources