scholarly journals Temperature and thrust force analysis on drilling of Glass fiber reinforced plastics

2019 ◽  
Vol 23 (1) ◽  
pp. 347-352 ◽  
Author(s):  
Engin Unal
Keyword(s):  
Composite Materials ◽  
Glass Fiber ◽  
Thrust Force ◽  
Fiber Reinforced ◽  
Force Analysis ◽  
Glass Fiber Reinforced Plastic ◽  
Fiber Reinforced Plastic ◽  
Plastic Composite ◽  
Glass Fiber Reinforced ◽  
Reinforced Plastic

Composite materials are widely used today in many sectors. Glass fiber reinforced plastic composite materials are one of those. Glass fiber reinforced plastic composite materials are preferred due to their high thermal and tensile strength. Although consist of glass fiber reinforced composite materials from multiple layers reduces the machinability of these materials, drilling is a common method of machining for these materials. However, when the drilling parameters are not carefully selected, the material integrity is deteriorated and the desired drilling quality cannot be obtained. In this study, the effect of drilling temperature and thrust force on the material integrity was investigated. The drill bit angle, spindle speed and feedrate parameters are used for the temperature and thrust force analysis.

Detection of Delamination in GFRP and CFRP by Microwaves with Focusing Mirror Sensor

2013 ◽  
Vol 750 ◽  
pp. 142-146 ◽  
Author(s):  
Atsushi Hosoi ◽  
Yuhei Yamaguchi ◽  
Yang Ju ◽  
Yasumoto Sato ◽  
Tsunaji Kitayama
Keyword(s):  
Composite Materials ◽  
Carbon Fiber ◽  
Glass Fiber ◽  
High Sensitivity ◽  
Carbon Fiber Reinforced Plastic ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Plastic ◽  
Fiber Reinforced Plastic ◽  
Glass Fiber Reinforced ◽  
Reinforced Plastic

A technique to detect delamination in composite materials by noncontact, rapid and high sensitive microwave reflectometry with a focusing mirror sensor was proposed. The focusing mirror sensor, which has high sensitivity and resolution, is expected to detect delamination sensitively. In this paper, the ability of microwave inspection to detect delamination in glass fiber reinforced plastic (GFRP) and carbon fiber reinforced plastic (CFRP) was verified. As the results, the existences of 100 μm thick delamination in 3 mm thick GFRP laminate and 2 mm thick CFRP laminate were detected.

Investigation of Nanomechanical Properties of the Interphase in a Fiber Reinforced Plastic Composite

2001 ◽  
Author(s):  
Sanjeev K. Khanna ◽  
Robb M. Winter ◽  
P. Ranganathan ◽  
S. B. Yedla ◽  
K. Paruchuri
Keyword(s):  
Elastic Modulus ◽  
Glass Fiber ◽  
Fiber Reinforced ◽  
Two Phase ◽  
Glass Fiber Reinforced Plastic ◽  
Fiber Reinforced Plastic ◽  
Plastic Composite ◽  
Atomic Force ◽  
Glass Fiber Reinforced ◽  
Reinforced Plastic

Abstract Glass fiber reinforced plastic composites are widely used as structural materials. These two phase materials can be tailored to suit a large variety of applications. A better understanding of the properties of the fiber-matrix ‘interphase’ can enable more optimum design of composites. The interphase is a microscopic region around the fiber and hence nano-scale investigation using nano-indentation techniques is appropriate to determine mechanical property variations. In this study the atomic force microscope with the Hysitron indenter has been used to determine the variation of the elastic modulus across the interphase for different silane coated glass fiber reinforced polyester composites. A comparative study of the elastic modulus variation in the interphase is reported. The results are discussed in the light of the current limitations of the instrumentation and analysis.

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