Effect of Glass Fiber Geometry on Composite Material Strength

ARS Journal ◽  
1961 ◽  
Vol 31 (9) ◽  
pp. 1260-1265 ◽  
Author(s):  
JAMES E. BELL
Keyword(s):  
Composite Material ◽  
Glass Fiber ◽  
Material Strength

scholarly journals Fabrication of Flexible Piezoelectric PZT/Fabric Composite

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Caifeng Chen ◽  
Daiwei Hong ◽  
Andong Wang ◽  
Chaoying Ni
Keyword(s):  
Composite Material ◽  
Glass Fiber ◽  
Piezoelectric Materials ◽  
Hydrothermal Condition ◽  
Curved Surfaces ◽  
Piezoelectric Crystal ◽  
Optimum Conditions ◽  
Sensor Actuator ◽  
Fabric Composite ◽  
Complicated Conditions

Flexible piezoelectric PZT/fabric composite material is pliable and tough in nature which is in a lack of traditional PZT patches. It has great application prospect in improving the sensitivity of sensor/actuator made by piezoelectric materials especially when they are used for curved surfaces or complicated conditions. In this paper, glass fiber cloth was adopted as carrier to grow PZT piezoelectric crystal particles by hydrothermal method, and the optimum conditions were studied. The results showed that the soft glass fiber cloth was an ideal kind of carrier. A large number of cubic-shaped PZT nanocrystallines grew firmly in the carrier with a dense and uniform distribution. The best hydrothermal condition was found to be pH 13, reaction time 24 h, and reaction temperature 200°C.

Optimization of composite leaf spring for reduced weight and improved noise, vibration, and harshness in an electric vehicle

2020 ◽  
Vol 51 (7-9) ◽  
pp. 127-138
Author(s):  
Smaranika Nayak ◽  
Jatin Sadarang ◽  
Isham Panigrahi ◽  
Ramesh Kumar Nayak ◽  
Manisha Maurya
Keyword(s):  
Composite Material ◽  
Stress Concentration ◽  
Glass Fiber ◽  
Electric Vehicle ◽  
Software Package ◽  
Research Work ◽  
Leaf Spring ◽  
Corrosion Resistant ◽  
Commercial Software Package ◽  
Noise Vibration

In automobiles suspension system, laminated springs are widely used for the absorption of shock and vibration. These laminated springs account for approximately 10%–20% of the unsprung weight of the vehicle. It has been found that composite material is used to reduce the weight of the vehicle in order to obtain better efficiency. Therefore, in the current research work, composite material is used for the fabrication of laminated spring. Among the various types of glass fiber available, the C-glass fiber has been widely used due to its better corrosion resistant property. Commercial software package ANSYS is used to optimize the composite-laminated spring. The optimized leaf spring is then fabricated by the hand layup method. It was found that the spring with composite graduated leaf resulted in 40% reduction in weight than the spring with steel graduated leaf. Similarly, the stress concentration and deformation values are reduced by 76.39% and 50% in comparison with those of steel graduated leaf. The composite-laminated spring showed better damping property and also resulted in less transmission of force to the chassis of the vehicle. The noise induced by the composite-laminated spring is also reduced in comparison with steel graduated leaf. Finally, a composite-laminated spring is found to be lighter in weight and with better noise, vibration, and harshness in comparison with steel graduated leaf. Thus, it is found to be best suited for an electric vehicle.

scholarly journals Evaluation of Composite Material used in the Wings of Typical Airplane based on Stress Analysis

2018 ◽  
Vol 3 (11) ◽  
pp. 37-41
Author(s):  
Tawfeeq W. Mohammed ◽  
Dalmn Yaseen Taha ◽  
Rafal R. Abdul-Ilah
Keyword(s):  
Experimental Data ◽  
Mechanical Properties ◽  
Tensile Strength ◽  
Composite Material ◽  
Carbon Fiber ◽  
Glass Fiber ◽  
Raw Materials ◽  
Stress Test ◽  
Mechanical Tests ◽  
Bending Stress

This research has focused on the evaluation of raw materials that used in the wings of modern airplane. These materials either would be fiberglass, carbon-fiber or aramid based composites like Kevlar. These common materials have been selected and evaluated depending on experimental data obtained from mechanical tests. These tests include: hardness, tensile strength and bending stress. The tests based on ASTM standards for mechanical properties. The results show increasing in the hardness value of graphite-epoxy by 9% comparing with that of fiberglass and by 18% comparing with that of Kevlar-epoxy. The results also show an increasing in the maximum tensile strength of graphite-epoxy by 2.9 times to that of fiberglass and by 5.5 times to that of Kevlar-epoxy. Furthermore, the results of bending stress test show increasing of the maximum strength of Kevlar-epoxy by 30% comparing to that of glass fiber and by 75% comparing to that of graphite-epoxy.

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