Effect of natural fibre reinforcement on the sound and vibration damping properties of bio-composites compression moulded by nonwoven mats

2019 ◽  
Vol 13 ◽  
pp. 12-17 ◽  
Author(s):  
Jin Zhang ◽  
Akbar Afaghi Khatibi ◽  
Erwan Castanet ◽  
Thomas Baum ◽  
Zahra Komeily-Nia ◽  
...  
Keyword(s):  
Natural Fibre ◽  
Vibration Damping ◽  
Fibre Reinforcement ◽  
Damping Properties ◽  
Nonwoven Mats

scholarly journals Sound and Vibration Damping Properties of Nonwoven Flax Reinforced Acrylic Based Polyester Composites

2018 ◽  
Vol 217 ◽  
pp. 01007
Author(s):  
WMA Wan Mamat Ali ◽  
L.E. Ooi ◽  
Z. A Mohd. Ishak
Keyword(s):  
Sound Absorption ◽  
Synthetic Fibre ◽  
Environmental Problems ◽  
Natural Fibre ◽  
Vibration Damping ◽  
Damping Factor ◽  
Damping Properties ◽  
Impedance Tube ◽  
Polyester Composites

This paper presents the sound and vibration damping properties of nonwoven flax reinforced acrylic based polyester composites. This research attempt to solve the problem of synthetic fibre which caused environmental problems. the goal of is study to characterize the sound absorption and damping properties of the natural fibre at difference thickness and pressure. the nonwoven flax reinforced acrylic based polyester composites are produced by using moulding machines at different compression pressures that are 10, 20 and 30 bars. the thicknesses of samples used in this study are 2 mm and 3 mm. the measurement of sound absorption of the material is carried out using impedance tube. For the sample with 2 mm thickness, the result shows that the maximum sound absorption of 0.93 was observed at frequency of 853 Hz and pressure of 20 bars. Damping values are calculated and measure for each sample. the result shows that damping factor is obtained is 0.039 and 0.052 for thickness materials of 2mm and 3mm.

scholarly journals Effects of water absorption on the mechanical properties of hybrid natural fibre/phenol formaldehyde composites

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sekar Sanjeevi ◽  
Vigneshwaran Shanmugam ◽  
Suresh Kumar ◽  
Velmurugan Ganesan ◽  
Gabriel Sas ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Impact Strength ◽  
Water Absorption ◽  
Hybrid Composites ◽  
Phenol Formaldehyde ◽  
Natural Fibre ◽  
The Other ◽  
Fibre Reinforcement ◽  
Dry Conditions

AbstractThis investigation is carried out to understand the effects of water absorption on the mechanical properties of hybrid phenol formaldehyde (PF) composite fabricated with Areca Fine Fibres (AFFs) and Calotropis Gigantea Fibre (CGF). Hybrid CGF/AFF/PF composites were manufactured using the hand layup technique at varying weight percentages of fibre reinforcement (25, 35 and 45%). Hybrid composite having 35 wt.% showed better mechanical properties (tensile strength ca. 59 MPa, flexural strength ca. 73 MPa and impact strength 1.43 kJ/m2) under wet and dry conditions as compared to the other hybrid composites. In general, the inclusion of the fibres enhanced the mechanical properties of neat PF. Increase in the fibre content increased the water absorption, however, after 120 h of immersion, all the composites attained an equilibrium state.

scholarly journals The effect of natural fibre reinforcement on polyurethane composite foams – A review

2021 ◽  
Vol 11 ◽  
pp. e00722
Author(s):  
Charles Kuranchie ◽  
Abu Yaya ◽  
Yaw Delali Bensah
Keyword(s):  
Natural Fibre ◽  
Fibre Reinforcement ◽  
Polyurethane Composite ◽  
Composite Foams

Study on improvement of vibration-damping properties for sports equipment

2020 ◽  
Vol 2020.28 (0) ◽  
pp. 527
Author(s):  
Ikuya KUBOTA ◽  
,Shigeru KAWAHARA ◽  
Akihiro MATSUDA
Keyword(s):  
Vibration Damping ◽  
Damping Properties

scholarly journals A Study Regarding the Mechanical Properties of a Hybrid Matrix with Various Volume Proportions of Dammar

2020 ◽  
Vol 57 (1) ◽  
pp. 133-140
Author(s):  
Dumitru Bolcu ◽  
Marius Marinel Stanescu ◽  
Ion Ciuca ◽  
Cosmin Mihai Miritoiu ◽  
Alin Dinita ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Vibration Mode ◽  
Vibration Damping ◽  
The Other ◽  
Damping Properties ◽  
Elongation At Break ◽  
Hybrid Resin ◽  
Natural Resin ◽  
Volume Proportion

This paper studies the influence of the volume proportion between components on the mechanical behaviour of a hybrid resin obtained by combining the natural resin Dammar and epoxy resin. We analyse three sets of hybrid resin samples, in which we used a Dammar volume proportion of 60%, 70%, and 80% respectively and epoxy resin (employed together with its associated reinforcement in order to generate a quick process of polymerization). Following the tensile test we found the characteristic curves, the tensile strength and the elongation at break for each of the three types of resins. We also looked into the vibration damping properties of bars made of this resin. We experimentally determined the frequency and the damping coefficient of the first particular vibration mode for one bar taken out of each set of resins, with one end fixed and the other free. On the basis of the results, we calculated the loss coefficient for each type of resin.

Vibration Damping Properties of NiCrAlY Coating Deposited by Arc Ion Plating

2017 ◽  
Vol 46 (5) ◽  
pp. 1188-1191 ◽  
Author(s):  
Du Guangyu ◽  
Tan Zhen ◽  
Ba Dechun ◽  
Liu Kun ◽  
Han Qingkai
Keyword(s):  
Vibration Damping ◽  
Damping Properties ◽  
Arc Ion Plating ◽  
Ion Plating ◽  
Nicraly Coating

Tunable viscoelastic and vibration damping properties of a segmented polyurethane synergistically reinforced with carbon black and anisotropic additives

2020 ◽  
Vol 170 ◽  
pp. 107535
Author(s):  
S. Praveen ◽  
Jitendra Bahadur ◽  
Rahul Yadav ◽  
Srikanth Billa ◽  
T. Umasankar Patro ◽  
...  
Keyword(s):  
Carbon Black ◽  
Vibration Damping ◽  
Damping Properties ◽  
Segmented Polyurethane
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