Investigation of Quasi-Static Punch-Shear Behavior of Acorn Powder Reinforced Composites

2021 ◽  
Author(s):  
Halis Kandaş ◽  
Okan Özdemir
Keyword(s):  
Glass Fiber ◽  
Room Temperature ◽  
Sodium Hydroxide Solution ◽  
Reinforced Composites ◽  
Mechanical Mixing ◽  
Static Penetration ◽  
Glass Fiber Reinforced ◽  
Mixing Method ◽  
Penetration Behavior ◽  
Penetration Tests

In this study, the effect of different amounts of acorn powder reinforcement on the quasi-static penetration behavior of glass fiber reinforced composites was investigated. Glass fiber used in this study is 0˚/90˚ stitched E-glass fiber with a density of 600 g/m2. The sizes of acorn powders used as particle reinforcements are between 10 to 40 micrometers. Powders were cleansed from impurities with a sodium hydroxide solution. Cleaned powders mixed with epoxy resin by using mechanical mixing method. Thereafter, resin mixture was applied to glass fiber with hand lay-up method and composite plate was produced by vacuum bag method. Quasi-static penetration tests were performed at room temperature. As quasi-static penetration speed, 1, 10 and 20 mm/minute was selected. Force and energy results of composites compared with each other.

Strengthening of Prefab Slab using Fiber Reinforce Composites

2017 ◽  
Vol MCSP2017 (01) ◽  
pp. 27-29
Author(s):  
Gitanjali Biswal ◽  
Manoj Kumar Rath ◽  
Sagarika Panda
Keyword(s):  
Glass Fiber ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Structural Members ◽  
Load Bearing ◽  
Concrete Members ◽  
Shrinkage Cracks ◽  
Glass Fiber Reinforced ◽  
New Material ◽  
Fiber Reinforce

The main objective of using strengthening of pre fab slab by wraping with frp to to make it more durable during shock as a modification for the prevention of shrinkage cracks. The aim of research is to strengthening of Pre-fab structures slab using glass fiber reinforced composites. Slabs will act as structural members; provide a sensible application for the new material because they can be casted as load bearing and non-load bearing concrete members.

Effect of ultrasonic-assisted impregnation parameters on the preparation and interfacial properties of MWCNT/glass-fiber reinforced composites

e-Polymers ◽  
2018 ◽  
Vol 18 (1) ◽  
pp. 35-47 ◽  
Author(s):  
Shaohua Zeng ◽  
Mingxia Shen ◽  
Pengpeng Duan ◽  
Fengling Lu ◽  
Shangneng Chen ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Interfacial Properties ◽  
Processing Temperature ◽  
Ultrasonic Power ◽  
Impregnation Method ◽  
Reinforced Composites ◽  
Multiwalled Carbon ◽  
Glass Fiber Reinforced ◽  
Ultrasonic Assisted ◽  
Interlaminar Shear

AbstractIn this study, an ultrasonic-assisted impregnation method was employed to deposit carboxyl multiwalled carbon nanotubes (MWCNTs) onto the E-glass fiber fabric (GFf) for the preparation of the MWCNT-GFf reinforcer. The effects of ultrasonic power, duration and temperature on the dispersion of MWCNTs onto GFf were investigated, and the mechanical properties, interlaminar adhesion, and dynamic viscoelasticity of the resulting MWCNT-GFf-reinforced composites (MGCs) were evaluated. The results indicated that an effective dispersion of MWCNTs onto GFf without obvious breakage of the MWCNTs was achieved under an ultrasonic power of 600 W, duration of 6 min, and processing temperature of about 0°C. Compared with the GFf-reinforced composite, the tensile strength, flexural strength and interlaminar shear strength of the MGCs exhibited maximum increments of 38.4%, 34.6% and 47.1%, respectively. Moreover, the storage moduli and glass-transition temperatures of the MGCs were significantly enhanced. The ultrasonic parameters were of key importance for dispersing MWCNTs onto GFf and improving the interfacial properties of the composites.

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