Evaluation of the damaged area of glass-fiber-reinforced epoxy-matrix composite materials submitted to ballistic impacts

2004 ◽  
Vol 64 (7-8) ◽  
pp. 945-954 ◽  
Author(s):  
L.M. Nunes ◽  
S. Paciornik ◽  
J.R.M. d'Almeida
Keyword(s):  
Composite Materials ◽  
Glass Fiber ◽  
Matrix Composite ◽  
Epoxy Matrix ◽  
Fiber Reinforced ◽  
Ballistic Impacts ◽  
Glass Fiber Reinforced ◽  
Epoxy Matrix Composite

Effect of Fiber Orientation on the Flexural Properties of Glass Fiber Reinforced, Epoxy- Matrix Composite

2019 ◽  
Vol 969 ◽  
pp. 502-507
Author(s):  
K. Chandra Shekar ◽  
Balasubramaniyan Singaravel ◽  
S. Deva Prasad ◽  
N. Venkateshwarlu
Keyword(s):  
Composite Materials ◽  
Flexural Strength ◽  
Glass Fiber ◽  
Matrix Composite ◽  
Fiber Orientation ◽  
Epoxy Matrix ◽  
Filament Winding ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced ◽  
Epoxy Matrix Composite

Advanced continuous polymer matrix composite materials provide considerable increase in flexural property values as compared with their bulk and monolithic counter parts. In this research work the effect of fiber orientation on the flexural strength of epoxy matrix composite materials reinforced with glass fiber was studied. Filament winding technique was employed for fabrication of composite with various fiber orientations. The flexural strength value of the glass fiber reinforced composite was comprehensively studied by means of three point bending flexural test and analysed by scanning electron microscopy. Experiments were conducted as per ASTM standards and it was concluded that reinforcement with 0o orientation of glass fibers shown improved flexural strength as compared to 45o and 90o orientation of fibers.

The effect of nanoparticle additive on surface milling in glass fiber reinforced composite structures

2021 ◽  
pp. 096739112110141
Author(s):  
Ferhat Ceritbinmez ◽  
Ahmet Yapici ◽  
Erdoğan Kanca
Keyword(s):  
Composite Materials ◽  
Glass Fiber ◽  
Composite Structures ◽  
Fiber Composite ◽  
Cutting Speed ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Glass Fiber Reinforced ◽  
Composite Layers

In this study, the effect of adding nanosize additive to glass fiber reinforced composite plates on mechanical properties and surface milling was investigated. In the light of the investigations, with the addition of MWCNTs additive in the composite production, the strength of the material has been changed and the more durable composite materials have been obtained. Slots were opened with different cutting speed and feed rate parameters to the composite layers. Surface roughness of the composite layers and slot size were examined and also abrasions of cutting tools used in cutting process were determined. It was observed that the addition of nanoparticles to the laminated glass fiber composite materials played an effective role in the strength of the material and caused cutting tool wear.

Directly bonded single lap joints of SiCp/AA2124 composite with glass fiber-reinforced polypropylene: Hole drilling effects on lap shear strength and out-of-plane impact response

2021 ◽  
pp. 002199832110316
Author(s):  
Nahit Öztoprak
Keyword(s):  
Glass Fiber ◽  
Matrix Composite ◽  
Lap Joints ◽  
Hole Drilling ◽  
Fiber Reinforced ◽  
Single Lap Joints ◽  
Lap Shear ◽  
Glass Fiber Reinforced ◽  
Out Of Plane ◽  
The Impact

Joining dissimilar materials to achieve lightweight design and energy efficiency has been increasingly popular. A joint formed by components of particle-reinforced metal and polymer matrix composite combines the merits of both materials. This paper is mainly focused on the research of the tensile lap shear and impact behavior of the dissimilar single-lap joints (SLJs) between SiCp/AA2124 composite and glass fiber-reinforced polypropylene (PP). The effects of out-of-plane loading applied from different surfaces of SLJs on impact responses are evaluated. Hot pressing technique is introduced to manufacture metal/polymer assembly without using any adhesive. The hole drilling effect is investigated with the idea that it may provide weight reduction and also increase the strength of the dissimilar SLJs. The results indicate that the dissimilar SLJs show more Charpy impact strength when the impact is performed on the metal-matrix composite (MMC). Mechanical properties of SLJs are adversely affected by a drilled hole in the MMC adherend.

Semi-active vibration control of MRF core PMC cantilever sandwich beams: Experimental study

2020 ◽  
Vol 234 (4) ◽  
pp. 574-585
Author(s):  
J Vipin Allien ◽  
Hemantha Kumar ◽  
Vijay Desai
Keyword(s):  
Glass Fiber ◽  
Matrix Composite ◽  
Polymer Matrix ◽  
Polyester Resin ◽  
Magnetorheological Fluid ◽  
Polymer Matrix Composite ◽  
Sandwich Beams ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced ◽  
Fluid Core

The semi-active vibration control of sandwich beams made of chopped strand mat glass fiber reinforced polyester resin polymer matrix composite (PMC) and magnetorheological fluid (MRF) core were experimentally investigated in this study. Two-, four- and six-layered glass fiber reinforced polyester resin polymer matrix composites were prepared using the hand-layup technique. The magnetorheological fluid was prepared in-house with 30% volume of carbonyl iron powder and 70% volume of silicone oil. Nine cantilever sandwich beams of varying thicknesses of the top and bottom layers glass fiber reinforced polyester resin polymer matrix composite beams and middle magnetorheological fluid core were prepared. The magnetorheological fluid core was activated with a non-homogeneous magnetic field using permanent magnets. The first three modes, natural frequencies and damping ratios of the glass fiber reinforced polyester resin polymer matrix composite-magnetorheological fluid core sandwich beams were determined through free vibration analysis using DEWESoft modal analysis software. The amplitude frequency response of the glass fiber reinforced polyester resin polymer matrix composite-magnetorheological fluid core sandwich beams through forced vibration analysis was determined using LabVIEW. The effect of various parameters such as magnetic flux density, thickness of glass fiber reinforced polyester resin polymer matrix composite layers and magnetorheological fluid core layer on the natural frequencies, damping ratio and vibration amplitude suppressions of the glass fiber reinforced polyester resin polymer matrix composite-magnetorheological fluid core sandwich beams was investigated. Based on the results obtained, 2 mm thickness top and bottom layers glass fiber reinforced polyester resin polymer matrix composite and 5 mm thickness magnetorheological fluid core sample have achieved a high shift in increased natural frequency, damping ratio and vibration amplitude suppression under the influence of magnetic flux density.

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