Journal ArticleDOI
The Use of Laser-Doppler Vibrometry for Modal Analysis of Carbon-Fiber Reinforced Composite
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TLDR
In this paper, the modal analysis procedure and the results obtained on a three-component 3D-printed carbon-fiber reinforced composite (CFRC) are presented, where different eigenoscillations waveforms possess different sensitivity of amplitude frequency response to structural defects of the composite.Abstract:
Both modal analysis procedure and the results obtained on a three-component 3D-printed carbon-fiber reinforced composite (CFRC) are presented. Experimental modal analysis of on the composite has been carried out to obtain the dynamic behavior characteristics. As revealed, the different eigen-oscillations waveforms possess different sensitivity of its amplitude frequency response to structural defects of the composite. For the similar waveforms we observed the differences in eigen-oscuillation frequencies, vibration velocities and damping factors which can be caused by the presence of numerous defects homogeneously distributed in one of the samples.read more
Citations
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Journal ArticleDOI
On the use of laser-scanning vibrometry for mechanical performance evaluation of 3D printed specimens
TL;DR: In this article, the suitability of laser-scanning vibrometry (LSV) for evaluation of the mechanical behavior of rectangular prisms produced by Fused Filament Fabrication (FFF) was explored.
Journal ArticleDOI
Studying Stability of CFRP Composites to Low-Energy Impact Damage by Laser Vibrometry
TL;DR: In this paper, the defects formed as a result of successive striking with increasing and decreasing energy in the range from 1 to 5 J were estimated by analyzing the images of vibrations at the surface of the composite produced by its acoustic stimulation and laser vibroscanning.
Journal ArticleDOI
Experimental and finite element analyses on the vibration behavior of 3D-printed PET-G tapered beams with fused filament fabrication
TL;DR: In this article , the effects of 3D-printed polyethylene terephthalate glycol (PET-G) tapered beams with fused filament fabrication (FFF) method were analyzed using finite element analysis.
References
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Journal ArticleDOI
Damage detection in composite materials using frequency response methods
TL;DR: In this paper, the authors present an experimental and analytical survey of candidate methods for the in situ detection of damage in composite materials, including modal analysis techniques applied to graphite/epoxy specimens containing representative damage modes.
Journal ArticleDOI
Dynamic mechanical analysis and free vibration behavior of intra-ply woven natural fiber hybrid polymer composite:
M. Rajesh,Jeyaraj Pitchaimani +1 more
TL;DR: In this article, the influence of nature of weaving pattern and intra-ply hybridization of natural fibers on dynamic mechanical and free vibration characteristics of woven banana/jute polyester composite has been inves...
Journal ArticleDOI
The influence of the laminate thickness, stacking sequence and thermal aging on the static and dynamic behavior of carbon/epoxy composites
TL;DR: In this article, the influence of laminate thickness, stacking sequence and thermal aging on the damping behavior of carbon/epoxy laminates was investigated by means of LDOV and dynamic mechanical analysis.
Journal ArticleDOI
Vibration modal analysis of defects in composite T-stiffened panels
TL;DR: In this article, a numerical and experimental investigation into the detection of defects in composite T-stiffened panels using vibration modal analysis was performed on carbon fiber/epoxy laminate panels containing a delamination crack or porosity.
Journal ArticleDOI
Dynamic and fatigue performances of a large-scale space frame assembled using pultruded GFRP composites
TL;DR: In this article, a large-scale space frame assembled using pultruded glass fiber reinforced polymer (GFRP) composites, with reference to pedestrian bridge application, is described.
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