Flexural response of concurrently 3D printed sandwich composite [PDF]
, 2020 Among many lightweight materials used in marine applications, sandwich structures with syntactic foam core are promising because of lower water uptake in foam core amid face-sheets damage. HDPE (high-density polyethylene) filament is used to 3D print sandwich skin, and glass microballoon (GMB) reinforced HDPE syntactic foam filaments are used for the ...
arxiv +1 more source
Correction of Young’s Modulus Calculation in the Flexural Mode of Resonant Column Test
Applied Sciences, 2020 The resonant column test includes torsional and flexural modes that can be used to obtain reduction curves for the shear modulus and Young’s modulus of the soil, respectively.
Wei-Chun Lin, Chi-Chin Tsai
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Development of Braiding-Pultrusion Method and Investigation of Mechanical Properties of Composite Rods Produced by this Method [PDF]
علوم و تکنولوژی پلیمر, 2013 In this research, a braiding-pultrusion production line is developed by modifying a conventional textile maypole braiding machine and adding it to a pultrusion line for production of braid-pultruded (BP) composite rods.
M.S. Ahmadi +3 more
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Size-independent Young's modulus of inverted conical GaAs nanowire resonators [PDF]
Appl. Phys. Lett. 103, 261901 (2013), 2014 We explore mechanical properties of top down fabricated, singly clamped inverted conical GaAs nanowires. Combining nanowire lengths of 2-9 $\mu$m with foot diameters of 36-935 nm yields fundamental flexural eigenmodes spanning two orders of magnitude from 200 kHz to 42 MHz. We extract a size-independent value of Young's modulus of (45$\pm$3) GPa.
arxiv +1 more source
Thin elastic shells with variable thickness for lithospheric flexure of one-plate planets [PDF]
Geophysical Journal International 172 (2), 817-841 (2008), 2007 Planetary topography can either be modeled as a load supported by the lithosphere, or as a dynamical effect due to lithospheric flexure caused by mantle convection. In both cases the response of the lithosphere to external forces can be calculated with the theory of thin elastic plates or shells.
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Finite elements modelling of scattering problems for flexural waves in thin plates: Application to elliptic invisibility cloaks, rotators and the mirage effect [PDF]
Journal of Computational Physics 230 (2011) 2237--2245, 2010 We propose a finite elements algorithm to solve a fourth order partial differential equation governing the propagation of time-harmonic bending waves in thin elastic plates. Specially designed perfectly matched layers are implemented to deal with the infinite extent of the plates. These are deduced from a geometric transform in the biharmonic equation.
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Flexural free vibration as a non-destructive test for evaluation of viscoelastic properties of polymeric composites in bending direction [PDF]
, 2015 In many applications, viscoelastic properties of reinforced composites need to be determined prior to their real service life. Such properties can be assured by destructive and non-destructive tests. In this paper, a novel non-destructive test (NDT) method based on flexural free vibration is introduced to investigate the viscoelastic properties of ...
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Kinetic and chemorheological modeling of thermosetting polyurethanes obtained from an epoxidized soybean oil polyol crosslinked with glycerin [PDF]
arXiv, 2022 Thermosetting polyurethanes were obtained using an aromatic isocyanate and a hydrophobic polyol formulation obtained from epoxidized soybean oil (ESO) crosslinked with glycerin. A systematic DSC analysis of the effect of catalyst type, crosslinker concentration, isocyanate index and ESO crystallization on the cure kinetics was conducted.
arxiv
Science and Engineering of Composite Materials, 2014 In this study, the effect of addition of Rockforce mineral and glass fiber fillers on the mechanical properties and morphological characteristics of polyamide-6 composites were evaluated and compared. Reinforcements, single and mixed compounds by various
Unal Huseyin, Mimaroglu A.
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The Journal of Indian Prosthodontic Society, 2021 Aims: To evaluate the flexural properties of computer-aided design-computer-aided manufacturing (CAD-CAM) milled posts fabricated from the experimental fibre-reinforced composite disks in different fibre direction, and to compare the flexural properties ...
Warin Prachasujit, Somchai Urapepon
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