Synergy of fiber length and content on free vibration and damping behavior of natural fiber reinforced polyester composite beams

2014 ◽  
Vol 56 ◽  
pp. 379-386 ◽  
Author(s):  
K. Senthil Kumar ◽  
I. Siva ◽  
P. Jeyaraj ◽  
J.T. Winowlin Jappes ◽  
S.C. Amico ◽  
...  
Keyword(s):  
Free Vibration ◽  
Fiber Length ◽  
Natural Fiber ◽  
Composite Beams ◽  
Fiber Reinforced ◽  
Damping Behavior ◽  
Polyester Composite

scholarly journals Effect of Chemical treatment on Flexure Properties of Natural Fiber-reinforced Polyester Composite

2011 ◽  
Vol 10 ◽  
pp. 2092-2097 ◽  
Author(s):  
Mansour Rokbi ◽  
Hocine Osmani ◽  
Abdellatif Imad ◽  
Noureddine Benseddiq
Keyword(s):  
Chemical Treatment ◽  
Natural Fiber ◽  
Fiber Reinforced ◽  
Polyester Composite

Effective Parameters on Strength of Fibre Reinforced Soil

2012 ◽  
Vol 166-169 ◽  
pp. 1630-1638
Author(s):  
Amin Chegenizadeh ◽  
Hamid Nikraz
Keyword(s):  
Fiber Length ◽  
Natural Fiber ◽  
Reinforced Soil ◽  
Fiber Content ◽  
Fiber Reinforced ◽  
Effective Parameters ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
The Subject

soils and their related behavior has always been the subject of many studies. Recent researches show some interests in investigation of inclusion of randomly distributed fiber in soil. Reinforcing subgarde in pavement systems has always been an issue. This study focuses on effect of fiber inclusion on the strength of subgrade material. Natural fiber and plastic fibre were used for this investigation. Fiber contents and length have been changed during these tests. The fiber percentage varied from 0 % (for unreinforced samples) to 2% and fiber length varied from 10mm to 30mm. UCS tests and compaction tests were carried out to investigate behavior of the composite under different condition. The fiber length and fiber content found to play important rule on the strength of fiber reinforced composite. Furthermore it was observed that ductility of sample increased by fiber inclusion.

scholarly journals Dynamic Mechanical Behavior Analysis of Flax/Jute Fiber-Reinforced Composites under Salt-Fog Spray Environment

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 716 ◽  
Author(s):  
Vincenzo Fiore ◽  
Carmelo Sanfilippo ◽  
Luigi Calabrese
Keyword(s):  
Mechanical Response ◽  
Natural Fiber ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Dynamic Mechanical ◽  
Fiber Reinforced Polymer Composites ◽  
Damping Behavior ◽  
Fiber Treatment ◽  
Hybrid Laminates ◽  
Salt Fog

Over the last decades, natural fiber-reinforced polymer composites (NFRPs) gained great attention in several engineering fields thanks to the reduction of the environmental impact and the end-of-life cost disposal. Unfortunately, the use of NFRPs is limited, mainly due to their weak resistance against humid environments. Since limited literature is available about the evolution of the dynamic mechanical response of NFRPs under aggressive environments, this paper aims to investigate the damping properties of flax, jute and flax/jute epoxy composites exposed to salt-fog up to 60 days. Furthermore, sodium bicarbonate fiber treatment was performed to improve the composites’ durability. The effectiveness of treatment was evidenced for full flax-reinforced composites, whereas no beneficial effect was found for jute composites. Moreover, treated hybrid laminates having outer laminae reinforced with flax showed better damping behavior than their hybrid counterparts during the whole aging campaign.

Investigation on Strength of Fiber Reinforced Clay

2011 ◽  
Vol 261-263 ◽  
pp. 957-963 ◽  
Author(s):  
Amin Chegenizadeh ◽  
Hamid Nikraz
Keyword(s):  
Fiber Length ◽  
Natural Fiber ◽  
Fiber Composite ◽  
Fiber Reinforced ◽  
Compression Tests ◽  
Good Tool ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
The Subject ◽  
Reinforced Clay

Clay soils and their related behavior has always been the subject of many studies. Recent researches show some interests in investigation of inclusion of randomly distributed fiber in clay. Reinforcing subgarde in pavement systems has always been an issue. This study focuses on effect of fiber inclusion on the strength of subgrade material. Natural fiber was used for this investigation. Fiber contents and length have been changed during these tests. The fiber percentage varied from 0 % (for unreinforced samples) to 3% and fiber length varied from 15mm to 65mm. In addition, as the other alternative 0.5% cement material was put in fiber composite to see the performance of composite. Clay was selected as soil. Triaxial Consolidated Undrained (CU) compression tests were carried out to investigate behavior of the composite under different condition. The fiber length and fiber content found to play important rule on the strength of fiber reinforced composite. Furthermore it was observed that ductility of sample increased by fiber inclusion. Cement percentage also found to be a good tool to stabilize soil composite.

scholarly journals Damping Behavior of Thermoplastic Organic Sheets with Continuous Natural Fiber-Reinforcement

Vibration ◽  
2021 ◽  
Vol 4 (2) ◽  
pp. 529-536
Author(s):  
Martin Dannemann ◽  
Sebastian Siwek ◽  
Niels Modler ◽  
André Wagenführ ◽  
Johannes Tietze
Keyword(s):  
Natural Fiber ◽  
Natural Fibers ◽  
Flax Fiber ◽  
Thermoplastic Composites ◽  
Damping Capacity ◽  
Fiber Reinforced ◽  
Lightweight Structures ◽  
Damping Behavior ◽  
Fiber Reinforced Materials ◽  
Fiber Materials

In the field of lightweight construction, the use of natural fibers as reinforcement in composites has been increasingly discussed. Additionally, the damping properties of natural fibers are known from fiber materials such as fiber insulation boards. In the scope of the work presented here, the focus is on identifying the potential of natural fibers for lightweight structures with high vibration damping capacity. For this purpose, test specimens made of flax fiber-reinforced and glass fiber-reinforced thermoplastic composites were manufactured and characterized. Contrary to expectations, the flax fiber-reinforced composite exhibited an almost isotropic damping characteristic. A comparison of the damping and stiffness properties determined by measurement confirms the high potential of natural fiber-reinforced materials for lightweight structures with high damping.

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