Results 121 to 130 of about 23,824 (281)
Investigation on shear strain of reinforced concrete membrane panels subjected to pure shear
Advances in Mechanical Engineering, 2019 Hsu recently conducted a shear test on nine reinforced concrete panel elements subjected to applying pure shear using a shear testing device. Modern truss models (i.e.
Je-Pyong Jeong, Dae-Hung Kang
doaj +1 more source
Advanced Intelligent Systems, EarlyView.This work presents a robot‐assisted Doppler optical coherence tomography system for autonomous, wide‐field intraoperative assessment of microvascular anastomoses. Machine‐vision–guided probe positioning and adaptive scan planning enable three‐dimensional structural and hemodynamic imaging over extended vessel segments.
Xiaochen Li +10 more
wiley +1 more source
Variation of stress in virtual biaxial compression test of ice rubble
, 2017 Ice rubble constitutes ice ridges and rubble fields, which can exert high loads on offshore structures. To characterize the ice rubble, its average properties are often desired. The properties, such as, the critical state friction angle, rely on the continuum notion of stress. This study uses discrete element model for the ice rubble. We use an average
Kulyakhtin, Sergey, Polojärvi, Arttu
openaire +3 more sources
Deep Underground Science and Engineering, EarlyView.The rock failure mode is significantly influenced by the contributing factors, such as the joint inclination, the initial confining pressure, and the unloading point. We found six typical rock failure modes after a large number of numerical tests. Abstract Excavation unloading damages rock masses, with preferential failure along geological defects in ...
Fei Liu +4 more
wiley +1 more source
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 +4 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza +4 more
wiley +1 more source
A proposed generalized constitutive equation for nonlinear para-isotropic materials [PDF]
Finite element models of varying complexities were used to solve problems in solid mechanics. Particular emphasis was given to concrete which is nonisotropic at any level of deformation and is also nonlinear in terms of stress-strain ...
Hu, K. K., Huang, C. J., Swartz, S. E.
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Achievement of Transition Metal Chalcogenides/Oxides in Hydrogen Production by Seawater Electrolysis
EcoEnergy, EarlyView.Transition metal chalcogenides (TMCs)/oxides have shown great application potential in seawater splitting for hydrogen generation due to their adjustable electronic properties, abundant active sites, and excellent catalytic performance. ABSTRACT Under the impetus of global “dual carbon” goals, green hydrogen has become a key component of the future ...
Xiaohui Du, Xinyu Li, Jianna Li, Tao Sun
wiley +1 more source
Ciência e AgrotecnologiaFabricated food gels involving the use of hydrocolloids are gaining polpularity as confectionery/convenience foods. Starch is commonly combined with a hydrocolloid (protein our polyssacharides), particularly in the food industry, since native starches ...
Thiago Novaes Silva +2 more
doaj +1 more source
Evaluation of failure criterion for graphite/epoxy fabric laminates [PDF]
The development and application of the tensor polynomial failure criterion for composite laminate analysis is described. Emphasis is given to the fabrication and testing of Narmco Rigidite 5208-WT300, a plain weave fabric of Thornel 300 Graphite fibers ...
Tennyson, R. C., Wharram, G. E.
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