scholarly journals Effects of silkworm fiber position on flexural and compressive properties of silk fiber-reinforced composites

2018 ◽  
Vol 51 (2) ◽  
pp. 57
Author(s):  
Ariyani Faizah ◽  
Dendi Murdiyanto ◽  
Yulita Nur Widyawati ◽  
Narawidya Laksmi Dewi
Keyword(s):  
Flexural Strength ◽  
Mechanical Strength ◽  
Compression Strength ◽  
Testing Machine ◽  
Silk Fiber ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Side Group ◽  
Fiber Reinforced ◽  
Fiber Position

Background: Fiber-reinforced composites represent a combination of fiber-reinforced composite materials. The availability of fiber within dentistry in Indonesia is limited and, therefore, requires lengthy advance ordering. The increasing use of fiber derived from natural materials, such as silk, is of greater concern due to its considerable mechanical strength, biocompatibility and wider availability. The application of fiber will increase the mechanical strength of fiber-reinforced composites, including both flexural and compression strength. One factor affecting the mechanical strength of fiber is the laying of fiber or fiber position. Purpose: The purpose of this research is to establish the influence of silkworm fiber position on both the flexural and compression strength of silk fiber-reinforced composites. Methods: Flexural strength and compression strength tests using a universal testing machine involved the division of the research population into three treatment groups: compression side, neutral side and tension side. Results: The results of data analysis indicated that the tension side group possessed the highest flexural strength (121.42 MPa), while the compression side group demonstrated the highest compression strength (337.65 MPa). A one-way ANOVA analysis test produced a significant result of p = 0.000 (<0.05) both for silkworm fiber position effect and compression strength of silk fiber reinforced composites. Conclusion: The position of silkworm fiber will affect its flexural strength as well as that of the compression of silk fiber-reinforced composites.

Bond strength to enamel and flexural strength of fiber-reinforced composites

2010 ◽  
Vol 26 ◽  
pp. e20-e21
Author(s):  
M. Beloica ◽  
C. Goracci ◽  
N. Chieffi ◽  
A. Vichi ◽  
Z.R. Vulicevic ◽  
...  
Keyword(s):  
Flexural Strength ◽  
Bond Strength ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced

Synthesis and Characterization of Multi Wall Carbon Nanotube (MWCNT) Filled Hybrid Banana-Glass Fiber Reinforced Composites

2015 ◽  
Vol 766-767 ◽  
pp. 193-198 ◽  
Author(s):  
T. Rajmohan ◽  
K. Mohan ◽  
K. Palanikumar
Keyword(s):  
Glass Fiber ◽  
Natural Fiber ◽  
Testing Machine ◽  
Fiber Reinforced Composites ◽  
Synthetic Fiber ◽  
Homogeneous Distribution ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Compression Tests ◽  
Glass Fiber Reinforced

Natural Fiber Reinforced Composite (NFRC) are used by replacing Synthetic Fiber Reinforced Composites (SFRC) because of its poor reusability, recycling, bio degradability. Even though NFRC are lack in thermal stability, strength degradation, water absorption and poor impact properties. The hybridization and nanoparticles mixed in different polymers are used to improve mechanical and wear properties of the polymer composites. In the present investigation Multi wall carbon nanotubes (MWCNT) dispersed in Epoxy resin using ultrasonic bath sonicator are used as matrix face for hybrid banana-Glass Fiber Reinforced Plastics composite materials which is manufactured by compression molding processes. As per ASTM standards tensile, compression tests are carried out by using Universal Testing Machine. Microstructure of samples are investigated by scanning electron microscope (SEM) with Energy dispersive X-ray (EDS). SEM shows the homogeneous distribution of the fiber in the modified polymer matrix. The results indicated that the increase in weight % of MWCNT improves the mechanical properties of MWCNT filled hybrid natural fiber composites.

Mechanical Properties of Additive Manufactured Complex Matrix Three-Component Carbon Fiber Reinforced Composites

2016 ◽  
Vol 712 ◽  
pp. 232-236
Author(s):  
Andrey V. Chumaevskii ◽  
Evgeny A. Kolubaev ◽  
Sergei Yu. Tarasov ◽  
Alexander A. Eliseev
Keyword(s):  
Carbon Fiber ◽  
Mechanical Strength ◽  
Carbon Fibers ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Compression Tests ◽  
High Mechanical Strength ◽  
Carbon Fiber Reinforced Composites ◽  
Carbon Fiber Reinforced

Mechanical strength of carbon fiber reinforced composites made of thermoplastic-thermosetting polymer matrix reinforced by carbon fibers has been determined. High mechanical strength has been revealed in tensile and compression tests both along and across the fibers. Specificity of fracturing in fiber-thermoplastics-thermosetting composition has been revealed. The effect of fiber bundling type on fracturing has been addressed.

scholarly journals Fracture Resistance of Teeth Restored with Bulk-Fill and Fiber-Reinforced Composites in Class II Cavities

2020 ◽  
pp. 239-249
Author(s):  
Gül Keskin ◽  
Zübeyde Uçar Gündoğar ◽  
Gün Burak Tek
Keyword(s):  
Fracture Resistance ◽  
Testing Machine ◽  
Third Molar ◽  
Class Ii ◽  
Composite Fiber ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite

This study aimed to evaluate the fracture resistance of teeth restored with conventional, bulk-fill, and fiber-reinforced composite materials regarding intact teeth. Standard cavities were prepared on 70 sound third molar teeth. The teeth were randomly divided into six groups: intact teeth, conventional Bis-GMA based composite, fiber-reinforced composite, Bis-GMA based bulk-fill composite, ormocer based bulk-fill composite, glass containing resin-based bulk-fill composite. The data was obtained by a Universal Testing Machine and analyzed statistically. Fracture resistance of the teeth restored with conventional composite was significantly lower than the other groups (p<0.05). The teeth restored with fiber-reinforced composite showed the highest fracture resistance; however, there were no statistically significant differences between intact teeth and teeth restored with fiber-reinforced composite, Bis-GMA based bulk-fill composite, and glass containing resin-based bulk-fill composite (p>0.05). The obtained data showed that restoring teeth with bulk-fill and fiber-reinforced composites could be recommended in Class II cavities.

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