Characterization of Hoek–Brown constant mi of quasi-isotropic intact rock using rigidity index approach
Sign Up to like & getrecommendations! Published in 2021 at "Acta Geotechnica"
DOI: 10.1007/s11440-021-01229-2
Abstract: An accurate determination of Hoek–Brown constant mi is of great significance in the estimation of the failure criteria of brittle rock materials. So far, different approaches such as rigidity index method (R-index), uniaxial compressive strength-based… read more here.
Keywords: brown constant; quasi isotropic; rock; hoek brown ... See more keywords
Mode I delamination fatigue resistance of unidirectional and quasi-isotropic composite laminates reinforced with rectangular z-pins
Sign Up to like & getrecommendations! Published in 2018 at "Composites Part A: Applied Science and Manufacturing"
DOI: 10.1016/j.compositesa.2018.10.013
Abstract: Abstract This paper presents an experimental study on the mode I delamination properties of circular and rectangular z-pins in hot-cured carbon fiber/epoxy laminates. Specimens with two different ply stacking sequences (unidirectional and quasi-isotropic) are used… read more here.
Keywords: delamination; rectangular pins; quasi isotropic; resistance ... See more keywords
Towards Quasi Isotropic laminates with engineered fracture behaviour for industrial applications
Sign Up to like & getrecommendations! Published in 2018 at "Composites Science and Technology"
DOI: 10.1016/j.compscitech.2018.07.004
Abstract: Abstract Carefully placed patterns of micro-cuts have been inserted in the microstructure of Cross-Ply (CP) and Quasi-Isotropic (QI) thin-ply CFRP laminates to engineer their translaminar fracture behaviour with the purpose of increasing their damage resistance… read more here.
Keywords: increase laminate; quasi isotropic; fracture behaviour;
Multi-instrument in-situ damage monitoring in quasi-isotropic CFRP laminates under tension
Sign Up to like & getrecommendations! Published in 2018 at "Composite Structures"
DOI: 10.1016/j.compstruct.2018.05.006
Abstract: Digital Image Correlation monitoring of the surface strains, microscopic in-situ observations of the micro-damage on the specimen edge and Acoustic Emission (AE) are utilized simultaneously during tension tests of quasiisotropic carbon fibre reinforced polymer composites.… read more here.
Keywords: multi instrument; frequency; quasi isotropic; damage ... See more keywords
A numerical study on the mechanisms of Dyneema® quasi-isotropic woven panels under ballistic impact
Sign Up to like & getrecommendations! Published in 2020 at "Composite Structures"
DOI: 10.1016/j.compstruct.2020.111855
Abstract: Abstract Quasi-isotropic (QI) fabric panels were recently found to have a promising performance against ballistic impact, compared with the aligned panels, since more areas in the followed plies are transversely deformed in the QI panels… read more here.
Keywords: aligned panels; quasi isotropic; study; ballistic impact ... See more keywords
Simplified modeling method of impact damage for numerical simulation of Lamb wave propagation in quasi-isotropic composite structures
Sign Up to like & getrecommendations! Published in 2020 at "Composite Structures"
DOI: 10.1016/j.compstruct.2020.112150
Abstract: Abstract In this paper, we present our investigation of impact damage modeling in a quasi-isotropic CFRP plate in which guided Lamb waves propagate. Because impact damages in CFRP structures consist of multiple microscopic damages, such… read more here.
Keywords: modeling method; impact; quasi isotropic; impact damage ... See more keywords
A practical approach for the non-local simulation of progressive damage in quasi-isotropic fibre-reinforced composite laminates
Sign Up to like & getrecommendations! Published in 2021 at "Composite Structures"
DOI: 10.1016/j.compstruct.2021.113761
Abstract: Abstract This paper presents a generic strategy to generate macroscopic continuum damage models using non-local averaging. Formulation and derivation of such model are shown for dispersed quasi-isotropic IM7/8552 carbon fibre-reinforced composites. Experimental data and results… read more here.
Keywords: damage; simulation progressive; quasi isotropic; non local ... See more keywords
A numerical study on the influence of quasi-isotropic structures on the ballistic performance of para-aramid woven composites
Sign Up to like & getrecommendations! Published in 2021 at "Composite Structures"
DOI: 10.1016/j.compstruct.2021.114489
Abstract: Abstract Aimed at improving the ballistic performance of woven fabric reinforced composites, quasi-isotropic structures were developed. This paper reports on the ballistic impact performance and mechanisms of multi-ply para-aramid/epoxy composites with orthotropic and quasi-isotropic structures… read more here.
Keywords: isotropic; isotropic structures; quasi isotropic; ballistic performance ... See more keywords
Static deflections of symmetrically laminated quasi-isotropic super-elliptical thin plates
Sign Up to like & getrecommendations! Published in 2017 at "Ocean Engineering"
DOI: 10.1016/j.oceaneng.2017.06.032
Abstract: Abstract This paper presents static bending analyses of symmetrically laminated quasi-isotropic super-elliptical thin plates. Calculations were performed by using the Rayleigh-Ritz Method based on the Classical Laminated Plate Theory. Bending of 24 different uniformly distributed… read more here.
Keywords: super elliptical; laminated quasi; quasi isotropic; isotropic super ... See more keywords
Long Radiation Lifetime and Quasi-Isotropic Excitons in Antioxidant V–V Binary Phosphorene Allotropes with Intrinsic Dipole
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.0c03156
Abstract: Two-dimensional (2D) V–V binary materials are gaining extensive attention because of high carrier mobility, largely tunable optical exciton properties, and high sensitivity to optical excitation. H... read more here.
Keywords: lifetime quasi; quasi isotropic; long radiation; radiation lifetime ... See more keywords
Quasi-isotropic SMMs: slow relaxation of the magnetization in polynuclear CuII/MnII complexes.
Sign Up to like & getrecommendations! Published in 2022 at "Dalton transactions"
DOI: 10.1039/d1dt04074j
Abstract: Three field induced SMMs built from quasi-isotropic cations like CuII and MnII have been characterized, showing that relatively large clusters with quasi-negligible D and different ground spin states, S = 3/2, 2 or 4, can… read more here.
Keywords: cuii mnii; relaxation magnetization; quasi isotropic; slow relaxation ... See more keywords