scholarly journals Fatigue strength of woven kenaf fiber reinforced composites

2015 ◽  
Vol 100 ◽  
pp. 012037 ◽  
Author(s):  
A E Ismail ◽  
M A Che Abdul Aziz
Keyword(s):  
Fatigue Strength ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Kenaf Fiber ◽  
Woven Kenaf

scholarly journals Oblique Perforated Impact Strength of Woven Kenaf Fiber Reinforced Composites

2015 ◽  
Vol 773-774 ◽  
pp. 48-52
Author(s):  
Al Emran Ismail
Keyword(s):  
Impact Strength ◽  
Impact Velocity ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Kenaf Fiber ◽  
Standard Geometry ◽  
Squeeze Out ◽  
The Impact ◽  
Woven Kenaf

This present work investigated the perforated impact strength of woven kenaf fiber reinforced composites subjected to different projectile velocities. Three layers of woven kenaf mats were stacked with four different fiber orientations 0, 15, 30 and 450. The composites are fabricated using hand-layout where the woven mats were placed into the mould with a polymeric resin. The wetted composites were compressed to squeeze out the excessive resin and to eliminate the void contents. The hardened samples were shaped into a standard geometry specified by ASTM D3763. Then, the composites were perforated impact using different speeds 1, 2 and 3 m/s. According to the present results, it was found that the perforated impact strength reduced when the impact velocity was increased. However, the impact strength of 150 oriented composite was higher when compared with other types of composites.

scholarly journals Perforated Impact Strength of Woven Kenaf Fiber Reinforced Composites

2015 ◽  
Vol 773-774 ◽  
pp. 43-47
Author(s):  
Al Emran Ismail ◽  
Muhammad Aiman Hasan ◽  
K.A. Kamaruddin
Keyword(s):  
Impact Strength ◽  
Impact Velocity ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Kenaf Fiber ◽  
Standard Geometry ◽  
Squeeze Out ◽  
The Impact ◽  
Woven Kenaf

This present work investigated the perforated impact strength of woven kenaf fiber reinforced composites subjected to different projectile velocities. Three layers of woven kenaf mats were stacked with four different fiber orientations 0, 15, 30 and 450. The composites are fabricated using hand-layout where the woven mats were placed into the mould with a polymeric resin. The wetted composites were compressed to squeeze out the excessive resin and to eliminate the void contents. The hardened samples were shaped into a standard geometry specified by ASTM D3763. Then, the composites were perforated impact using different speeds 1, 2 and 3 m/s. According to the present results, it was found that the perforated impact strength reduced when the impact velocity was increased. However, the impact strength of 150 oriented composite was higher when compared with other types of composites.

Kenaf fiber reinforced composites: A review

2011 ◽  
Vol 32 (8-9) ◽  
pp. 4107-4121 ◽  
Author(s):  
H.M. Akil ◽  
M.F. Omar ◽  
A.A.M. Mazuki ◽  
S. Safiee ◽  
Z.A.M. Ishak ◽  
...  
Keyword(s):  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Kenaf Fiber

CRUSHING MECHANISMS OF CYLINDRICAL WINDING KENAF FIBER REINFORCED COMPOSITES

2016 ◽  
Vol 78 (6) ◽  
Author(s):  
Al Emran Ismail
Keyword(s):  
Specific Energy ◽  
Compressive Loading ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Kenaf Fiber ◽  
Number Of Layers ◽  
Lack Of Information ◽  
Force Ratio ◽  
Crushing Behavior

This paper presents the crushing behavior of cylindrical kenaf fiber reinforced composites subjected to axial compressive loading. Lack of information available on the study of cylindrical composites fabricated using kenaf yarn fibers where it is wound around the cylindrical mold. There are two important parameters are used during the composite fabrications namely fiber orientations (00, 50 and 100) and number of layers (1, 2 and 3 layers). These composite tubes are crushed axially and forces versus displacement curves are recorded. Then, the specific energy absorptions and force ratios are determined. As expected, increasing the number of layers increased the specific energy absorptions but it is not significantly affected the force ratio even different fiber orientations are used. During progressive collapses, most of the failures mechanisms observe are localized buckling with large wall fragmentations.

Low Velocity Impact on Woven Kenaf Fiber Reinforced Composites

2014 ◽  
Vol 629 ◽  
pp. 503-506 ◽  
Author(s):  
Al Emran Ismail ◽  
M.A. Hassan
Keyword(s):  
Impact Velocity ◽  
Composite Plates ◽  
Fiber Reinforced Composites ◽  
Low Velocity Impact ◽  
Reinforced Composites ◽  
Low Velocity ◽  
Kenaf Fiber ◽  
Velocity Impact ◽  
The Impact ◽  
Woven Kenaf

This paper presents the experimental investigations on the low velocity impact response of woven kenaf fiber reinforced composites. Kenaf yarns are weaved with an orientation of 00 of warp and 900 of weft to form woven kenaf mat. Three woven kenaf mats are stacked together to achieve the specified sequences. The woven stacked kenaf mats are hardened with polymeric resin and compressed to squeeze off any excessive resin and to minimize voids content. The hardened composite plates are perforated using different impact velocities. Impact responses of the composite plates are examined according to stacking sequences, impact velocities and fragmentation patterns. According to the present results, the impact strength is strongly related with the impact velocity. If higher impact velocity is used, the performances of load bearing are reduced. It is obvious that no significant features of composite fragmentations occurred from the perforated holes. However, relatively larger area of mechanical damages is found distributed around the holes, indicating the capability of composites to absorb energy effectively.

scholarly journals Mechanical Properties of Banana Fabric and Kenaf Fiber Reinforced Epoxy Composites: Effect of Treatment and Hybridization

2019 ◽  
Vol 8 (10) ◽  
pp. 1870-1874
Keyword(s):  
Mechanical Properties ◽  
Natural Fiber ◽  
Fiber Composite ◽  
Fiber Reinforced Composites ◽  
Synthetic Fiber ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Kenaf Fiber ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite

Nowadays, Natural Fiber Reinforced composites (NFCs) are emerging to be a good substitute for synthetic fiber reinforced composites as NFCs have many advantages such as low density, high specific strength, recyclability, low cost and good sound abatement quality etc. Among all types of NFCs, a vast study has been done on banana fiber and kenaf fiber reinforced composite. However, only limited work has been done on the banana fabric, kenaf fiber reinforced composite and the effect of their hybridization on mechanical properties. In this paper, an attempt has been made to study the mechanical properties of the banana fabric, kenaf fiber and hybrid banana fabric/kenaf fiber reinforced composites. Effect of alkali treatment on kenaf fiber reinforced composite is discussed in the paper. For the present work, plain-woven banana fabric and randomly oriented kenaf fiber are used as reinforcement while the epoxy resin is used as a matrix. samples are fabricated using hand lay-up and vacuum bagging method. Curing is done at ambient temperature (250C-300C) for 48h. Tensile, impact and hardness test has been performed on a specimen according to ASTM standards. Improvement in mechanical properties is observed after alkali (6% NaOH) treatment on kenaf fiber reinforced composite. Tensile testing behavior of randomly oriented kenaf fiber composite has been studied using Finite element method and results are compared with experimental investigations. This topic present big potential because it seeks to find solution for sustainable development with environmental concerns.

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