Carrying capacity of an orthotropic rectangular plate of PPN glass-fiber material in transverse bending

1975 ◽  
Vol 7 (2) ◽  
pp. 187-190
Author(s):  
�. M. Ginesina
Keyword(s):  
Glass Fiber ◽  
Rectangular Plate ◽  
Carrying Capacity ◽  
Fiber Material ◽  
Orthotropic Rectangular Plate ◽  
Transverse Bending

Technologies for processing materials based on glass-fiber materials

2021 ◽  
Vol 2021 (6) ◽  
pp. 24-28
Author(s):  
Kseniya Golubeva ◽  
Aleksey Noskov
Keyword(s):  
Glass Fiber ◽  
Fiber Material ◽  
Alternative Methods ◽  
Processing Methods ◽  
Characteristic Features ◽  
Fiber Materials ◽  
Abrasive Cutting

The review of basic methods for glass-fiber material machining is shown, characteristic features are presented also advantages and drawbacks of different processing methods are mentioned. There is shown a description of glass-fiber material edge machining. The alternative methods such as hydro-abrasive cutting and laser working are considered.

scholarly journals Tool wear at glass-fiber material milling

2017 ◽  
Vol 2 (4) ◽  
pp. 25-30
Author(s):  
Андрей Марков ◽  
Andrey Markov ◽  
Наталья Макарова ◽  
Natalia Makarova ◽  
Сергей Гайст ◽  
...  
Keyword(s):  
Tool Wear ◽  
Glass Fiber ◽  
Fiber Material

scholarly journals Optimizing Glass Fiber Molding Process Design by Reverse Warping

Materials ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1151
Author(s):  
Han-Jui Chang ◽  
Zhi-Ming Su
Keyword(s):  
Glass Fiber ◽  
Material Property ◽  
Measurement Errors ◽  
Plastic Material ◽  
Fiber Material ◽  
Optimization Method ◽  
Processing Parameters ◽  
Molding Process ◽  
Curve Fit ◽  
Pressure Time

The purpose of this study is to clarify the influence of changes in glass fiber properties on warpage prediction, and to demonstrate the importance of accurate material property data in the numerical simulation of injection molding. In addition, this study proposes an optimization method based on the reverse warping agent model, in which the thermal conductivity of the plastic material is reduced, and the solidified layer on the surface of the mold is reduced and transferred from the molding material to the mold wall. This means that by the end of the cooling phase, the shrinkage of the molten zone within the component will continue, resulting in warpage. Based on the optimal process parameters, the sensitivity of the warpage prediction to the relationship between the two most important material properties, the glass fiber and holding pressure time, was analyzed. The material property model constants used for numerical simulations can sometimes vary significantly due to inherent experimental measurement errors, the resolution of the test device, or the manner in which the curve fit is performed to determine the model constants. This model has been developed to intelligently determine the preferred processing parameters and to gradually correct the details of the molding conditions. Thus, the cavity is separated in the critical warpage region, and a new cavity geometry with a reverse warped profile is placed into the mold base slot. The results show that the hypothetical and reasonable variation of the glass fiber model constant and the holding pressure time relationship may significantly affect the magnitude of the warpage prediction of glass fiber products. The greatest differences were found as a result of the warping orientation of the glass fiber material.

scholarly journals Design of Composite I-Beam Section to Prevent Web-Flange Junction Failure and Improving Its Axial Load Carrying Capacity

2019 ◽  
Vol 9 (1) ◽  
pp. 2373-2380
Keyword(s):  
Glass Fiber ◽  
Carrying Capacity ◽  
Failure Strength ◽  
Load Carrying Capacity ◽  
Flat Plates ◽  
Element Analysis ◽  
Bath Solution ◽  
Load Carrying ◽  
Acidic Bath ◽  
The Web

Most of the chemical industries are used with Polyurethane (PU) coated steel sample which is found that some chemical reaction and rusted in acidic bath solution becomes a problem in industry. For such problems composite materials can be of good solution which does not possess any reaction with working fluids (acids in our case). With composites there is complexity of manufacturing and high cost involvement, so as to avoid those simplified approach is used to get Flat plates made of Glass fiber reinforced in epoxy which is best solution for any acidic bath as it possesses high resistance to any reaction with itself. Glass fiber plates are cut into the size of dimension and with the help of adhesives joint the WFJ of I-Beam, there are two different types of adhesives used, araldite 2015 and Hundsman araldite are used. The hundsman araldite is found to get better performance of Web-Flange junction (WFJ) joint. Finite element analysis (FEA) is used to get initial validation and further it’s observed that Hundsman araldite failure strength on the web-flange junction is better. Also, additional cleat used with 4 mm, 12 mm for increasing the Web-Flange junction (WFJ) area to improve the Load carrying capacity of the Beam. The experimental analysis results clearly indicate that the emersion of the reinforced epoxy glass-fiber in the acidic bath solution for a certain period, there is no any reaction formed in the acidic bath and improved the behavior of the specimen. Results from FEA and experimental test have shown good correlations are obtained with improvement of failure strength on WFJ

The variation in low speed impact strength on glass fiber/Kevlar composite hybrids

2020 ◽  
Vol 54 (21) ◽  
pp. 3009-3019 ◽  
Author(s):  
Jayna Kátia Dionísio dos Santos ◽  
Rayane Dantas da Cunha ◽  
Wanderley Ferreira de Amorim Junior ◽  
Renata Carla Tavares dos Santos Felipe ◽  
José Lira Braga Neto ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Glass Fiber ◽  
Residual Strength ◽  
Composite Laminates ◽  
Fiber Material ◽  
Middle Layer ◽  
Damage Area ◽  
Residual Properties ◽  
Layer Composite

The aim of this study was to analyze the effect of hybridization on impact and residual strength in composites as well as the types of damage caused by the impacts, quantifying the delaminated area of the test specimens. Two 11-layer composite laminates were developed, one with bidirectional glass fiber woven and the other a hybrid with three layers of bidirectional aramid fiber substituting the outer layers and the middle layer of the glass fiber. The materials revealed that the hybrid laminate obtained greater impact strength withstanding one impact of 76 J, albeit with an increase in the damaged area of between 64 and 85 cm2, resulting in a decline in mechanical properties along nearly the entire test specimen. This contrasts with what occurred in the glass fiber laminates, which recovered over 80% of their mechanical properties for a distance of 35 mm from the edge of the impactor. Moreover, it demonstrated that the variation in residual strength can be represented by an equation and that there is a relation between the damage area and the residual properties of the glass fiber material.

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